Grid Zone Designation 18S

1 Figure 1. grid Zone Designations of the National grid (USNG)1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 CDEFGHJKLMNPQRSTUVWX80 72 64 56 48 40 32 24 16 8 0 8 16 24 32 40 48 56 64 72 84 174 180 168 162 156 150 144 138 132 126 120 114 108 102 96 90 84 78 54 48 42 36 30 24 18 0 12 6 6 12 18 24 30 36 42 48 54 60 66 66 72 grid Zone Designation 18S174 180 168 162 156 150 144 138 132 126 120 114 108 102 96 90 84 78 72

2 AB90 W90 E180 0 0 YZ180 90 E90 W60 Figure 2. Basic Plan of the 100,000-meter Square Identification of the United States National grid (USNG)BMCMDMEMFMGMBLCLDLELFLGLBKCKDKEKFK GKBJCJDJEJFJGJBHCHDHEHFHGHBGCGDGEGFGGGBF CFDFEFFFGFBECEDEEEFEGEBDCDDDEDFDGDBCCCDC ECFCGCBBCBDBEBFBGBBACADAEAFAGABGCGDGEGFG GGBFCFDFEFFFGFBECEDEEEFEGEBDCDDDEDFDGDBC CCDCECFCGCBBCBDBEBFBGBBACADAEAFAGABVCVDV EVFVGVBUCUDUEUFUGUBTCTDTETFTGTBSCSDSESFS GSBRCRDRERFRGRBQCQDQEQFQGQBPCPDPEPFPGPBN CNDNENFNGNKMLMMMNMPMQMKLLLMLNLPLQLKKLKMK NKPKQKKJLJMJNJPJQJKHLHMHNHPHQHKGLGMGNGPG QGKFLFMFNFPFQFKELEMENEPEQEKDLDMDNDPDQDKC LCMCNCPCQCKBLBMBNBPBQBKALAMANAPAQAKVLVMV NVPVQVKULUMUNUPUQUKTLTMTNTPTQTKSLSMSNSPS QSKRLRMRNRPRQRKQLQMQNQPQQQKPLPMPNPPPQPKN LNMNNNPNQNKMLMMMNMPMQMKLLLMLNLPLQLKKLKMK NKPKQKKJLJMJNJPJQJKHLHMHNHPHQHKGLGMGNGPG QGKFLFMFNFPFQFTMUMVMWMXMYMTLULVLWLXLYLTK UKVKWKXKYKTJUJVJWJXJYJTHUHVHWHXHYHTGUGVG WGXGYGTFUFVFWFXFYFTEUEVEWEXEYETDUDVDWDXD YDTCUCVCWCXCYCTBUBVBWBXBYBTAUAVAWAXAYATG UGVGWGXGYGTFUFVFWFXFYFTEUEVEWEXEYETDUDVD WDXDYDTCUCVCWCXCYCTBUBVBWBXBYBTAUAVAWAXA YATVUVVVWVXVYVTUUUVUWUXUYUTTUTVTWTXTYTTS USVSWSXSYSTRURVRWRXRYRTQUQVQWQXQYQTPUPVP WPXPYPTNUNVNWNXNYNAMALAKAJAHAGAFAEADACAB AAAGAFAEADACABAAAVAUATASARAQAPANHMHLHKHJ HHHGHFHEHDHCHBHAHGHFHEHDHCHBHAHVHUHTHSHR HQHPHNJMJLJKJJJHJGJFJEJDJCJBJAJVJUJTJSJR JQJPJNJMJLJKJJJHJGJFRSRRRQRPRNRMRLRKRJRH RGRFRMRLRKRJRHRGRFRERDRCRBRARVRURTSMSLSK SJSHSGSFSESDSCSBSASGSFSESDSCSBSASVSUSTSS SRSQSPSNZMZLZKZJZHZGZFZEZDZCZBZAZGZFZEZD ZCZBZAZVZUZTZSZRZQZPZN1,000,000m8 0 180 500,000mFalse Easting174 168 162 0 8 1,000,000m2,000,000m2,000,000m16 16 24 162 168 174 180 24 0m0m500,000mFalse Easting500,000mFalse EastingFigure 3.

3 Organization of the National grid (USNG) 100,000-meter grid SquaresAVBVCVDVEVFVGV HVJEKELEME NEPEQE RESVTVUVVV WV XVYVZVAU BU CU DU EUFU GU HUJDKDLD MD ND PD QD RD SUTUUU VU WU XUYUZUATBTCTDTETFTGTHTJCKCLC MC NC PC QC RCSTTTUTVT WTXTYTZTASBSCSDSESFSGS HSJBKBLBMB NBPBQB RBSSTSUSVS WS XSYSZSAR BR CR DR ERFR GR HRJAKALAMA NAPAQA RASRTRUR VR WR XRYRZRAQ BQ CQ DQ EQ FQ GQ HQJVKVLVMV NVPVQV RVSQ TQ UQ VQ WQ XQYQ ZQAPBPCPDPEPFPGP HPJUKULU

4 MU NU PU QU RU SPTPUPVP WP XPYPZPAN BN CN DN ENFN GN HNJTKTLTMTNTPTQTRT SNTNUN VN WN XNYNZNAM BM CM DM EM FM GM HMJSKSLSMS NSPSQS RS SM TM UM VM WM XM YM ZMALBLCLDLELFLGLHLJRKRLR MR NR PR QR RRSLTLULVL WLXLYLZLAKBKCKDKEKFKGK HKJQKQ LQ MQ NQ PQ QQ RQ SKTKUKVK WK XKYKZKAJBJCJDJEJFJGJHJJPKPLPMP NPPPQP RPSJTJUJVJWJXJYJZJAH BH CH DH EHFH GH HHJNKNLN MN NN PN QN RN SHTHUH VH WH XHYHZHAG BG CG DG EG FG GG HG JM KM LM MM NM PM QM RM SG TG UG VG WG XGYG ZGAFBFCFDFEFFFGFHFJLKLLLMLNLPLQLRLSFTFUF VF WFXFYFZFAEBECEDEEEFEGE HEJKKKLKMK NKPKQK RKSETEUEVE WE XEYEZEAD BD CD DD EDFD GD HDJJKJLJMJNJPJQJRJSDTDUD VD WD XDYDZDAC BC CC DC ECFC GC HCJHKHLH MH NH PH QH RH SCTCUC VC WC XCYCZCABBBCBDBEBFBGB HBJGKG LG MG NG PG QG RG SBTBUBVB WB XBYBZBAABACADAEAFAGA

5 HAJFKFLFMFNFPF QFRF SATAUAVA WA XAYAZAAEBECEDEEEFEGE HEJVKVLVMV NVPVQV RVSETEUEVE WE XEYEZEAD BD CD DD EDFD GD HDJUKULU MU NU PU QU RU SDTDUD VD WD XDYDZDAC BC CC DC ECFC GC HCJTKTLTMTNTPTQT RTSCTCUC VC WC XCYCZCABBBCBDBEBFBGB HBJSKSLSMS NSPSQS RSSBTBUBVB WB XBYBZBAABACADAEAFAGA HAJRKRLR MR NR PR QR RR SATAUAVA WA XAYAZAAVBVCVDVEVFVGV HVJQKQ LQ MQ NQ PQ QQ RQ SVTVUVVV WV XVYVZVAU BU CU DU EUFU GU HUJPKPLPMP NPPPQP RPSUTUUU VU WU XUYUZUATBTCTDTETFTGT HTJNKNLN MN NN PN QN RNSTTTUTVT WTXTYTZTASBSCSDSESFSGS HSJM KM LM MM NM PM QM RM SSTSUSVS WS XSYSZSAR BR CR DR ERFR GR HRJLKLLLMLNLPLQLRLSRTRUR VR WR XRYRZRAQ BQ CQ DQ EQ FQ GQ HQJKKKLKMK NKPKQK RKSQ TQ UQ VQ WQ XQYQ ZQAPBPCPDPEPFPGP HPJJKJLJMJNJPJQJRJSPTPUPVP WP XPYPZPAN BN CN DN ENFN GN HNJHKHLH MH NH PH

6 QH RH SNTNUN VN WN XNYNZNAM BM CM DM EM FM GM HMJGKG LG MG NG PG QG RG SM TM UM VM WM XM YM ZMALBLCLDLELFLGLHLJFKFLFMFNFPFQFRFSLTLUL VL WLXLYLZLAKBKCKDKEKFKGK HKJEKELEME NEPEQE RESKTKUKVK WK XKYKZKAJBJCJDJEJFJGJHJJDKDLD MD ND PD QD RDSJTJUJVJWJXJYJZJAH BH CH DH EHFH GH HHJCKCLC MC NC PC QC RC SHTHUH VH WH XHYHZHAG BG CG DG EG FG GG HGJBKBLBMB NBPBQB RBSG TG UG VG WG XGYG ZGAFBFCFDFEFFFGFHFJAKALAMA NAPAQA RASFTFUFVF WFXFYFZF2,000,000 mZONES1,000,000 m500,000 m0 m1,500,000 mSET 11, 7, 13, 19, 25, 31,37, 43, 49, 55 SET 22, 8, 14, 20, 26, 32,38, 44, 50, 56200,000 m300,000400,000500,000600,000700,000800, 000 mSET 33, 9, 15, 21, 27, 33,39, 45, 51, 57 SET 44, 10, 16, 22, 28, 34,40, 46, 52, 58 SET 55, 11, 17, 23, 29, 35,41, 47, 53, 59 SET 66, 12, 18, 24, 30, 36,42, 48, 54, 60200,000 m300,000400,000500,000600,000700,000800, 000 m200,000 m300,000400,000500,000600,000700,000800, 000 m200,000 m300,000400,000500,000600.

7 000700,000800,000 m200,000 m300,000400,000500,000600,000700,000800, 000 m200,000 m300,000400,000500,000600,000700,000800, 000 mFigure 4. Methods for depicting grid Zone Designations and 100,000-meter Square Identifications on the US National grid in the grid Reference National GridGrid Zone Designation17S18S78 78 43 00 QBQCTGTH100,000-m Square IDGrid Zone Designation18S43 00 UHUJ100,000-m Square National GridGrid Zone Designation18 SUH100,000-m Square National GridGrid Zone Designation18S3 0043 00 THTJUHUJ100,000-m Square National GridUK100,000-m Square ID18 SGrid Zone Designation18T40 National GridQC100.

8 000-m Square IDTH78 grid Zone Designation17S18S78 National GridGrid Zone Designation18S3 00 TJUJ100,000-m Square National GridUKGrid Zone Designation18S18T40 4 00VK100,000-m Square National GridQETK100,000-m Square IDGrid Zone Designation17T18T78 17S18S40 National Grid1. Read numbers labeling the VERTICAL grid line left of pointand estimate tenths (100 meters) from grid line to Read numbers labeling the HORIZONTAL grid line below pointand estimate tenths (100 meters) from grid line to 492 6 WHEN REPORTING ACROSS A 100,000 METER LINE, PREFIXTHE 100,000 METER SQUARE IDENTIFICATION IN WHICH THE POINT : 954926 Example: TH954926 WHEN REPORTING OUTSIDE THE grid ZONE DESIGNATIONAREA, PREFIX THE grid ZONE : 18 STH954926 grid Zone Designation18S100,000-m Square IDSamplepoint95969293 THFigure 5.

9 Sample grid Reference Box with instructions for giving a complete 6. United States National grid (USNG) Principal 94296 97 The 10,000 and 1,000 meter values in UTM coordinates are known as theprincipal digits in USNG coordinates. In this illustration, four examples havebeen circled. Note how the USNG principal digits are portrayed in larger type, and the preceding UTM values are included as superscript. This well established convention provides both USNG and UTM values in a manner that is easy to read and prevents confusion. Alternatively, grid lines may be identified by only the principal digits (See Figure 7 for additional details.)

10 USNG Principal Digits298000E2993003014298000N4299430001 THUHUHTHTJUJ43002999842990198300301 UHUJUJTJTJT