But the same grid is used for both MGRS and USNG positions. Near the equator, the columns of UTM zone 1 have the letters AH, the columns of UTM zone 2 have the letters JR (omitting O), and the columns of UTM zone 3 have the letters SZ. Tools to give you the advantage over any Imminent Threats that come your way. A user account is not needed for the features on this web page. If you know that your next point is positioned next to a linear feature such as a road, river, power lines, or railroad track, you can deliberately offset your course to speed up your travel. When all of the coordinates you are working with are localized within the same 100,000 meter square identifier, it is permissible to drop the What is the most accurate 8 digit grid coordinate to the intersection of the largest road that intersects the railroad in grid square EG0193? Too much offset could take you too far off course and lead to confusion down the road. Measuring right in The lettering scheme for 100,000m squares is slightly different in the polar regions. A line from any point on the earth's surface to the North Pole. Of course, youll never get the hang of it just by reading you need to get out there and practice! Editor-in-Chiefs Note:Nick recently left the Navy after serving for 10 years as a Navy SEAL with multiple deployments, having been awarded the Bronze Star for operations in austere environments. So what happens when theres a large object between you and the target half way through your navigation leg? In this video, I'll walk you through how to plot an eight-digit grid coordinate on a topographical map. Keep in mind that uneven terrain and other environmental factors will effect your pace count. You will be given 2 minutes to accomplish the requirements for each target for a total of 4 minutes. 2. (These One of the key advantages of MGRS is that it provides a scale small enough to make perfectkilometer-length grid lines by depicting a round world as flat. Find the four-digit grid number, then you use the protractor, line it up at the corner of the grid, and move along the x-axis until the northwest side is on the location . bu"NWn3f,\-:(At8tFu5YSJu"_faEy8;@R Values; Grid Zone Designations. First take a 90 degree turn to the right (or left if applicable). UJ. We want to move our pencil up until it lines up with 3.0. This is because both Latitude and Longitude lines are drawn on the globe, which is a sphere. Coordinates on a map - pick GPS lat & long or coordinates in a projection system. The resolution in this case is 1 meter, so the MGRS coordinate would represent a 1-meter square, where the easting and northing are measured to its southwest corner. a parking spot). So it would look like this in my notebook: Measure distance from point 2 to point 3. How accurate is a 4 digit grid coordinate? To find square 30/91, start at the bottom left corner of your map and working from left to right, find grid line 30. Measuring up in meters from grid The first step is to get an accurate pace count and to build a set of pace count beads, these will help you track your distance traveled, which is a crucial step in navigation. If your lateral pace count was 60 meters then youllneed to travel 60 meters back in the direction of your original line of travel. Occasionally youllsee small blue circles drawn over stretches of what appears to be land. Keep a pace count for the distance that it takes you to be free of the obstacle. Once its tied, place the center hole of the protractor on your first point and line the left and right edges as close to parallel with the grid lines on the map. Using a map with a 1000m grid, the first two digits are come from the large type on the label for the grid line to the south of the position. This complete, and unique spatial address is required for GPS 1:24,000 maps are also known as 7.5 minute quadrangles, due to their representation of an area thats 7.5 minutes of longitude wide by 7.5 minutes of latitude high. At least, this is possible if the precision of the grid reference is enough to place the denoted area completely inside either 1P or 1Q. These require different levels I have not strictly followed this part of the standard in these tutorials. sized local When youve traveled to your known distance, stop and mark that location with whatever you have available. Stop walking, but remember the pace count that you stopped at. The videos that I am still working on will walk you though that process. Move the protractor to your right until the left grid line is directly under the tic marking 61. Now the 100,000-meter square is divided into 10 parts. 100,000-meter Square Identification; for regional areas. endstream endobj 1 0 obj <>/Font<>>>/Rotate 0/StructParents 1/Type/Page>> endobj 2 0 obj <>stream If your protractor has a distance scale then go ahead and use it. New for 2023: There are now some tutorial videos to help you learn about GISsurfer. Standing at the center of the marker shown on the map below, a GPS unit used to define point features, such as a neighborhood, soccer field, a Your protractor will likely have different scale grids. You can now use GISsurfer to take a series of screenshots that exactly adjoin. Can a 7-Year-Old Vehicle Bag Stand Up to Texas Heat? When a hill is incorporated, your number will rise compared to your flat ground count. The third part of an MGRS coordinate is the numerical location within a 100,000 meter square, given as n + n digits, where n is 1, 2, 3, 4, or 5. Equipment you need for wherever your adventures in life take you. If these marks arent circles, but rather blue dashes, they represent large rapids. Another Follow the same steps as in finding the six-digit grid number, but instead don't round and count as one of the numbers. The MGRS expression of this would be 19TCG 30 91. (*(%8H8c- fd9@6_IjH9(3=DR1%? of granularity. depicted below. It identifies a unique 100,000m square within the Grid Zone. Repeat until youve gotten your measurements all the way to the end point. Now move to point 2 and repeat the same process to get the bearing for point 3. Yes, youll make mistakes, but thats all part of the learning process. Start with both feet at the start line and step off with your left foot and walk the 100 meters using your normal stride. I highly recommend taking a piece of paper from your notebook and drawing tic marks from the kilometer scale for later use. Learn how to avoid costly mistakes when plotting points as well. Center-hold technique,Compass-to-cheek technique, Land Navigation - Corporals Course EOC Questions and Answers. Techniques to help you prepare your transportation and enhance your travels. The map is displayed by GISsurfer which is a general purpose web map based on the Leaflet map API (Application Program Interface). . Were focusing on those last two digits right now 46. This will cut the number in half and make it much easier to keep count in the field. measurement of East-West position, within the 100,000 meter square, in meters. based on UTM values.) Those screenshots can show any public GIS data. The ability to navigate terrain with a map and compass is a skill-set thats become lost in recent years due to technological advances like GPS and its integration into our smartphones. Place that directly over your first plot. 1011 0 obj <>stream You always read right, Accuracy is key here. Congratulations! =8g'!2XdJyS`vpfp=fG% fG4 e!Gy3$aqR@jLP/WDSoj83y(]8~_>TT08!ReI<>XJ-CS g| We drop the 1-meter level values (shown as 0s in this So if you need to travel 400 meters and your pace count for 100 meters is 65, youll know that it will take about 260 paces to traverse that distance (400/100 = 4; 4X65 = 260). The way were doing land navigation requires us to walk in straight lines from one point to the next. For more on pace counts, check out Land Navigation: Calculating your Pace Count. The numbered grid lines on the E2C 1:25,000 scale map are 1,000 metres apart (1 km). The MGRS is used as geocode for the entire Earth. It takes practice, lots of practice to "eyeball" an eight (8) digit grid coordinate but it can be done. Washington, DC area. Use the Menu button to toggle the MGRS coordinates grid on/off. Stop. You can also see natural landmarks, degrees of incline, lakes, rivers and even streams on the map. Lat/Lon, UTM, UPS, MGRS, USNG, GARS, Plus Codes, what3words, Georef, Maidenhead, and State Plane are supported. A benefit of a global needle is that itll function anywhere on the planet. This is a mistake that anyone could make and the movie Into the Wild demonstrates the negative impact that it can have. Youll thenneed to plot those points on your map, using a military coordinate protractor. The bottom set of numbers, 44683, represent a A few things that jump out at you are man-made objects such as railroad tracks, roads, power lines and more. If your protractor has a distance scale, use it. The correction causes truncated strings to be considered valid if any part of the square which they denote lies within the latitude zone specified by the third letter of the string. [7] South of 80S, UPS South (Universal Polar Stereographic) is used instead of a UTM projection. Note: It is easy to make an mistake using truncated position formats. On the other hand, Repeat the process until youve gotten bearings for all of your known MGRS coordinate points. If not directly on a number, round up if greater than . And don't forget to leave a comment below so we can continue the conversation. If you need to go 50 meters, youll know you need to go about 32 paces (65/2 = 32.5). Here are examples of formats that work: Decimal degrees (DD):. Understanding the Universal Transverse Mercator System. The size of the circle is always dependent on the terrain youre dealing with. described as being located at grid 23480647 (think 2348 / 0647). If youre wondering, letters I or O dont exist in the letter sequence in order to avoid possible confusion of the numbers 1 and 0. From your closest known point youll want to begin your search with a small circle. 10 meter resolution (4 + 4 digits) is sufficient for many purposes, and is the NATO standard for specifying coordinates. Brett July 26, 2016 Last updated: June 1, 2021. Just to give you some perspective, there are thousands of these quads that make up every inch of just the United States. What that means is that on a 1:24,000 map, one inch equals 24,000 inches on the ground. To get back to our bearing, were going to subtract 90 from 165 and set our compass to 75. Now that youre out in the field and standing on your MGRS starting point, youll need to shoot a bearing to the point youre traveling to. Truncating ensures the more precise squares will always remain within the less precise squares. letterhead for the Department of Interior might portray the address as: A complete USNG spatial address provides a unique value and is by truncating the grid coordinate values. As you can probably guess, those numbers are referred to as the 100-meter identification 19TCG 306 919 and the 10-meter identification 19TCG 3061 9196. 3. The grid is labeled with UTM coordinate values. The west half-circle forms a grid zone with designation A; the east half-circle forms one with designation B; see figure 3. Problem is, theres a small pond in our direction of travel. The label, Want to start taking action on the content you read on AoM? 100,000-meter Square Identification (i.e. The last two numbers are what will bring you into the 10 square meters that youre looking for. In a follow-on article,well be discussing terrain association using the map and how to find your position when you become lost using a couple of different resection techniques. This alleviates the need for a circle search. There are a few different schools of thought when it comes to choosing a compass thats right for you, but I can tell you that you wont be disappointed with a sighting mirror compass like the Silva Ranger or a sighting mirror compass with a global needle like the Suunto MC-2. We look down at our notes and see that next to our starting coordinate, we have a bearing of 165 to get to point 2. depicted below. Step 5. grid lines are For example, at the boundary between grid zones 1P and 1Q, we find a 100,000-meter square BT, of which about two thirds is south of latitude 16 and therefore in grid zone 1P, while one third is north of 16 and therefore in 1Q. What do we do if we come across an obstacle in our path, like a dense patch of scraggly mesquite trees or a pond? As you can see were dialing it in. How accurate is a 8 digit grid coordinate? WGS84 datum. Since the letters A, B, Y, and Z are not used for any latitude bands of UTM, their presence in an MGRS coordinate, with the omission of a zone number, indicates that the coordinates are in the UPS system. The Grid Zone is endstream endobj 1001 0 obj <>stream Walk at that 90 angle of your original bearing until youve cleared the pond and can move forward again. and counts east. system for the UTM coordinate system, it is actually much more. 1,000 meters (or 1 kilometer) separates each grid line. The boundaries of the latitude bands are parallel circles (dashed black lines in figure 1), which do not coincide with the boundaries of the 100,000-meter squares (blue lines in figure 1). In the polar regions, there is only one version of the lettering scheme.[7]. no login required) ArcGIS server along with an MGRS grid on top of that data. The inclusion of spaces to separate the logical parts of the coordinate string has been shown to facilitate Question 2 What are the three types of north shown in the declination diagram? The coordinates are formatted to PGC standards. New for 2022 - Offline maps that display USNG. Question 3 A __________ is a low point in the ground or a sinkhole. The MGRS format is designed to support measurement precisions of 1m, 10m, 100, 1,000m, and 10,000m. field size area). the easting and northing coordinates. 6 digits - 234064 - locates a point with a precision of 100-meters (a soccer field size area). I recommend putting a small number next to each dot to remind yourself of the order of your plots. While the size of your target will also change the size of your circles, the circle itself will remain the same. As Figure 1 illustrates, Honolulu is in grid zone 4Q. Ill also tell you why it has an advantage over UTM. 19. For a short description of my other projects see the MappingSupport project page. Each 2 letter/8 digit USNG value (10-m posting) in the outlined area is unique. Get out your compass, and index your bearing to 165 and move your body until the needle is inside the box. So from point 1 to point 2, theres a bearing of 165. degree of precision you require within a local area. up to line 06. This also equals 2,000 feet, just in case you didnt do the math. The restricted column alphabet for UPS ensures that no UPS square will be adjacent to a UTM square with the same identification. If the closest line of vegetation is far away and you can see that your target isnt between you and the vegetation, adjust your circle to give you additional vantage points from varying angles. Its nice to have smaller units for shorter legs of navigation. that any two-letter combination will not repeat itself but every 18 of Before we learn how to use MGRS coordinates and get out into the field, were going to do some prep work to make sure that we have all the information we need to navigate. The northmost latitude band, X, is 12 high. So, an MGRS grid reference for a position in BT should begin with 1PBT in the south part of BT, and with 1QBT in the north part of BT. Lets start by talking about the most critical resource to have with you whenever youre away from civilization, the map. hVmk0+}(dJ!VX:(%&1$Nq\";vec/NGc8$&4a8JEi&T2ZJJ!$wd2ty1K4j])Y&o\qM7jOMwe=]gGwmy&F>Y}76ch80Gznv68MMNhVD!P [=par[*-Q/dUfv L aBD5`W9Le)&b$&6Or#S9b1p9')D1fZKN)Bt} .~KM~q_".MbYrrSO7xkkhIv3pG08)%Lf)Y|JogC`&7xabH<0S[qQW`fVcp~(?HGpWQpY@i9E6xYdX54Rib[k,vvF8b> }o-;x69UI8j{w 8:]2vddY=WCvEcp^akP` 7,0l'S Mw=: t 9*1+Kso5,^aWtu%8? `UvT Its time to start trekking. 8 digits is accurate to 10m and 10 digits to 1m. Grid coordinates are used to define a The horizontal grid lines are The conterminous US for example is covered by belts R, S, T, and This truncation can put them on the wrong side of a latitude zone boundary, causing the truncated MGRS string to be considered invalid. New for 2022 - Offline maps that display MGRS. How to read grid coordinates. This avoids confusion by allowing you to quickly identify whether youre looking at an 8-digit or 10-digit grid. The Military Grid Reference System is a geographic coordinate system that comes from the Universal Transverse Mercator (UTM) grid system, which is based on a flat world, not a sphere. 19TCG 3061 9196. An easy way to do it is to simply draw a line from your first plot through the plot that youre measuring a bearing on, like so: Draw it lightly with your pencil (were going to erase it), and make sure it extends pretty far past your second plot. Lets take a look at our easting coordinate again: 3046. You can then use the GeoJPG web app (I am the developer) to install the JPGs on your phone or tablet and view those JPGs as an *offline* map with geolocation and the MGRS grid turned on. |6Lz=59)L The way that I mark distance is to take a loose-leaf piece of paper and make tic marks based on the distance scale in the bottom margin of my map. We'll use a topographical map and a protractor and. particular house, or even a parking place. If this was on a GPS then youd have two extra digits and would be able to find a 1-meter location from the MGRS 10-digit grid. World-Wide Unique For civilians, knowing how to plot MGRS coordinates by hand and navigate to them can be useful foractive outdoorsmen. of a modest home). Take another bearing and resume your original pace count towards the target. In fact, most questions about land navigation end with the answer, it depends. This is because there are so many variables that will change your technique. (Latitude band X is the exception to this rule.) neighborhood size area). Practice all cards Question 1 What is this 8-digit grid coordinate? If so, wed love to have you as a Crew Leader by joining our annual membership! You want the knot as small as possible, so the best thing to use is a Figure-8 Knot. Make sure to keep track of your pace count as you walk and to keep your eyes on the target so that you dont lose your way. Related to this is the primacy of the southwest corner of the polygon being the labeling point for an entire polygon. Look where the line you just drew on your map lines up on your protractor hashmarks. Now add back 90 to get your original bearing of 165. This is where the mirror comes into play on the top lid, adjust it down so you can see that the red is still in the shed and pick out an easily identifiable object as far away as possible. The grid square youll be working with is to the right (east) of the line marked 30. Best practices involving up to date medical information and life saving equipment. through regional areas, the last level of definition in a spatial address is the Grid Zone The identification consists of a column letter (AZ, omitting I and O) followed by a row letter (AV, omitting I and O). Using a GPS or an online tool, you canacquire 8-digit MGRS coordinates for the various spots youre targeting during your trek in the wilderness. Step-by-step answer. of about the size of a modest home.). Thus any two letter prefix to a Designation. For example, if youre going up or down a hill, youll likely take more steps to traverse 100 meters. Eight figure grid references really require a larger scale than this. Type Latitude / Y Longitude / X; Decimal Degrees (DD) 0: 0: Degrees Decimal Minutes (DDM) 0: 0: Degrees Minutes Seconds (DMS) 0: 0: WGS84 Antarctic Polar Stereographic (EPSG:3031) 0: 0: WGS84 NSIDC Arctic Polar Stereographic North (EPSG:3413) 0: 0: The easiest way to do this is to take a single gut from a piece of 550 cord and tie a 12 inch section onto the center hole of your protractor. At zone 4, the column letters start over from A, and so on around the world. Click the Convert button, and the result appears in the Converted Coordinates card in the Position field. Using a map with a 1000m grid, the first two digits are come from the large type on the label for the grid line to the west of the position. 19TCG 3061 9196means that your grid square is 30/91. A graphic representation of a portion of the Earth's surface drawn to scale, as seen from above. The illustration below depicts the The first step is to line up 0/0 on your protractor with the bottom left corner of the grid youre working with. Ill walk you through how to do that, using for anexamplethe eight-digit coordinate number:30469530. The complete easing component is 23480. All lines of longitude are True North lines. When the term 'grid square' is used, it can refer to a square with a side length of 10km (6mi), 1km, 100m (328ft), 10m or 1m, depending on the precision of the coordinates provided. D:M:S can be input in the format DD:MM:SS followed by the appropriate direction (NSWE). The numbers that follow this comprise the eight-digit U.S. National Grid coordinates. NGA Guidance for the Military Grid Reference System (MGRS). The Military Grid Reference System (MGRS)[1] is the geocoordinate standard used by NATO militaries for locating points on Earth. Write that bearing down in your notebook next to your coordinate for point 2 to remind yourself when you get to point 2, youll need to shoot that bearing on your compass to get to point 3. 8 digits - 23480647 - locates a point with a precision of 10-meters (the size of a modest home). Question 4 A map is defined as __________. (In some cases, squares adjacent to a Grid Zone Junction (GZJ) are clipped, so polygon is a better descriptor of these areas.) Youve got 60 meters to go until your destination. A spatial address is customarily written as a single string First, we need to figure out how many paces it takes for us to cover 100 meters. particular place within a local area (within a 100 by 100 kilometer area). The reason why this tactic works so well is because it gives you two key pieces of information, it eliminates confusion and provides a backstop. known as principal digits as depicted below. This storymap introduces students to 4-digit and 6-digit grid references by truncating the grid coordinate values. It also has a declination adjustment if youre in the camp that advocates changing your declination. An example of an MGRS coordinate, or grid reference, would be 4QFJ12345678, which consists of three parts: An MGRS grid reference is a point reference system. I would encourage you to use spaces when writing MGRS coordinate strings, The amount of information you can gain from referencing a map is actually pretty amazing when you break it down. This means that if you click on the link and order a product, I may receive a small commission to help support the channel. Choose to display your locations as MGRS 10-digit, MGRS 8-digit, or LatLon Decimal. is located on 1849 C Street NW, at grid 22850694." Set your compass back to its original bearing of 165 and start walking again until you pass the obstacle. 10 digits - 2348306479 - locates a point with a precision of 1-meter (within The two dimensional depiction of our world is stretched at both poles out of necessity. Look at the top of your map at the easting numbers, and move right until you find the 30 grid line. EID,ka,(i6YK9hi-&:Z2-1\ tT>BmJUFm3#c|iSvK#lN*=nu'IFi0+pO?mX`PV0%\z,(ph pUECei"94tDuhDsn9WF)~ZbR T J)3OM aE5Mk":r$s]x\azK`t- n9m[eK;6oQD-.@%QD-:lIe2$;8"gU+{,dl"Zb7#KjuXa_>A])%7o2wM~4~^ksv2zdN?32 $9bUWP;ng{"HP Dy gngN So our easting number is 30; our northing coordinate is 95. The MGRS is derived from the Universal Transverse Mercator (UTM) grid system and the Universal Polar Stereographic (UPS) grid system, but uses a different labeling convention. A practical motivation was given in the release notes for GEOTRANS,[4] Release 2.0.2, 1999: The MGRS module was changed to make the final latitude check on MGRS to UTM conversions sensitive to the precision of the input MGRS coordinate string. The Military Grid Reference System ( MGRS) is the geocoordinate standard used by NATO militaries for locating points on the Earth. If possible, get a pace on flat ground as well as walking both up and down a hill. That way, if GPS fails on a mission, they can still make it to their intended waypoints even if theyre small and specific; with MGRS coordinates and a military protractor, you can plot a point on a map within 10 meters of accuracy. The crossing vertical and horizontal . Walk until youve gone 40 paces. This displays the full U.S. National Grid spatial address for your location; for example, 18SUJ23480647. I'll walk you through how to do that, using for an example the eight-digit coordinate number: 30469530 Now you can simply skirt the linear feature to the RIGHT until you find your point. are written along the sides of a map designating specific grid lines. Enter a location search below to zoom to the approximate location. The complete northing Now pull the cordage to the second point insuring that theres no kinks in the line. For more information on how the UTM grid works check out an earlier article entitled Understanding the Universal Transverse Mercator System.. grid coordinate will provide a unique value within a very large area. For example, stationary necessary to make the coordinates unique over the entire globe. I'll be using a military map, a standard military protractor, and a mechanical pencil.Shop these and other items on my Amazon storefronthttps://www.amazon.com/shop/stokermatic*Disclaimer - these links are affiliate links - that means should you order, I may receive a small commission to help support my channel.I'll demonstrate a few errors I've seen people make when it comes to plotting points so you can understand the consequence of these errors and help prevent you from making the same mistakes. The Kepler Cardigan from PDW: Versatile Adventurer Insulation. Although you wont see your intended target youre navigating to in the end, this is the object you can now walk to without having to continuously reference your compass. First off, youll need a protractor that has a scale that supports the scale of the map, we used theprotractors includedin our ITS Land Navigation Starter Pack. In instances where the polygon is not a square and has been clipped by a grid zone junction, the polygon keeps the label of the southwest corner as if it had not been clipped. Now put the zero on your first point and mark where the second is on your home made scale. term might be abbreviated). Each UTM zone is divided into 100,000 meter squares, so that their corners have UTM-coordinates that are multiples of 100,000 meters. Again, I recommend using rocks because I never feel comfortable separating myself from my backpack. For example, when describing the entire square BT, should it be called 1PBT or 1QBT? Although the same numbers recurs about every 60 miles, normally that will cause no problem when the general location is understood. Then count grid lines I'll also leave off with how to determine a grid azimuth as well. Note how the size of the grid squares near the Arctic are much larger than those near the Equator. The world is divided into 60 UTM Zones, each 6 degrees of You may also see small blue circles if youre near an intermittent river. If youre looking at a map of a Texas lake (like above) then youll see them in places which will be underwater after the rain season or without any water during a drought. Well need to walk around it, but how do we do that without losing track of our distance and our bearing? With these tools and tricks youllbe able to identify the correct map, use a proper MGRS plotting technique and find objects in the wilderness the size of a wooden stake in the ground. In a northing direction, the world is divided into 8 belts of Convert Coordinates - Calculate a position in a variety of formats. To give the position of Honolulu with 100km resolution, we write 4QFJ. In this case, our map has a scale of 1:24,000, so Ill use that scale. Once you have a couple points plotted, youll want to get the distance between the two. When using less precise representation, it is important to truncate rather than round the Easting and Northing values. HW]o8}H&ib!3$u4KR"E_ZvEy=/v}$7YH^\TD)Q"qN)'JIo$&G1y&&&XcDiBP.adz4oGX2eD0Nm1lFbgt63nG9S21WO`*a]g>[aCYeM0`fr~B4IcN64pev5(Ny[ g-0}89[3iV*`1 Please note that a topographic map stresses the importance of land, not water. NY)cA0k](;} overlays the UTM coordinate system. One of the most critical pieces of information is the scale of the map. The USNG is an alpha-numeric reference system that Time to get more specific. The size of square represented by a given coordinate will vary with the coordinate's precision. This is similar to This system is designed for use with UTM grids. Note that this will take a couple of repetitions to feel comfortable with, so grab a few more points to plot. Since youre dependent on the bearing and pace, youll need to find a way to get around it and wind up close to the same line of travel on the other side of the object in your way. That would be 255. Select all that apply. On the first 1 kilometer, I mark tic marks for every 100 meters. This is to say that the distance between the two will be different from the top of your map to the bottom. Next up you have a 100,000-Meter Square Identification that comes in the form of two letters. In the popup that appears, click 'Help'. Once again youllplot from left to right first. the UTM grid reference system; the article on Universal Transverse Mercator shows many maps of these grid zones, including the irregularities for Svalbard and southwest Norway. In this example, "18S" is the Grid Zone Designation and "UJ" is the Square Identification. Click the Learn More button below for details. Walk forward 60 more meters.

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