1 National Geodetic Survey, Retrieval Date = MAY 1, 2003 AA4490 *********************************************************************** AA4490 DESIGNATION - G 63 RESET AA4490 PID - AA4490 AA4490 STATE/COUNTY- MT/ROOSEVELT AA4490 USGS QUAD - CHELSEA NW (1972) AA4490 AA4490 *CURRENT SURVEY CONTROL AA4490 ___________________________________________________________________ AA4490* NAD 83(1986)- 48 09 27. (N) 105 29 46. (W) SCALED AA4490* NAVD 88 - 660.16 (+/-2cm) 2165.9 (feet) VERTCON AA4490 ___________________________________________________________________ AA4490 GEOID HEIGHT- -17.17 (meters) GEOID99 AA4490 AA4490 VERT ORDER - THIRD (See Below) AA4490 AA4490.The horizontal coordinates were scaled from a topographic map and have AA4490.an estimated accuracy of +/- 6 seconds. AA4490 AA4490.The NAVD 88 height was computed by applying the VERTCON shift value to AA4490.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) AA4490.The vertical order pertains to the superseded datum. AA4490 AA4490.The geoid height was determined by GEOID99. AA4490 AA4490; North East Units Estimated Accuracy AA4490;SPC MT - 441,810. 897,630. MT (+/- 180 meters Scaled) AA4490 AA4490 SUPERSEDED SURVEY CONTROL AA4490 AA4490 NGVD 29 - 659.56 (m) 2163.9 (f) RESET 3 AA4490 AA4490.Superseded values are not recommended for survey control. AA4490.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA4490.See file dsdata.txt to determine how the superseded data were derived. AA4490 AA4490_U.S. NATIONAL GRID SPATIAL ADDRESS: 13UDP631339(NAD 83) AA4490_MARKER: DV = VERTICAL CONTROL DISK AA4490_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA4490_STAMPING: G 63 RESET 1992 AA4490_MARK LOGO: NGS AA4490_MAGNETIC: N = NO MAGNETIC MATERIAL AA4490_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA4490+STABILITY: SURFACE MOTION AA4490_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA4490+SATELLITE: SATELLITE OBSERVATIONS - 1992 AA4490 AA4490 HISTORY - Date Condition Report By AA4490 HISTORY - 1992 MONUMENTED MTDOT AA4490 AA4490 STATION DESCRIPTION AA4490 AA4490'DESCRIBED BY MONTANA DEPARTMENT OF TRANSPORTATION 1992 (DRD) AA4490'3.6 MI (5.8 KM) NORTH ALONG STATE HIGHWAY 13 FROM MACON, ROOSEVELT AA4490'COUNTY, AT A ROAD CROSSING, 4.0 FT (1.2 M) NORTHEAST OF A POWER POLE AA4490'AND 1.0 FT (0.3 M) EAST OF A WITNESS POST. 1 National Geodetic Survey, Retrieval Date = MAY 1, 2003 AA4491 *********************************************************************** AA4491 DESIGNATION - H 63 RESET AA4491 PID - AA4491 AA4491 STATE/COUNTY- MT/ROOSEVELT AA4491 USGS QUAD - CHELSEA NW (1972) AA4491 AA4491 *CURRENT SURVEY CONTROL AA4491 ___________________________________________________________________ AA4491* NAD 83(1986)- 48 10 58. (N) 105 29 45. (W) SCALED AA4491* NAVD 88 - 646.96 (+/-2cm) 2122.6 (feet) VERTCON AA4491 ___________________________________________________________________ AA4491 GEOID HEIGHT- -17.16 (meters) GEOID99 AA4491 AA4491 VERT ORDER - THIRD (See Below) AA4491 AA4491.The horizontal coordinates were scaled from a topographic map and have AA4491.an estimated accuracy of +/- 6 seconds. AA4491 AA4491.The NAVD 88 height was computed by applying the VERTCON shift value to AA4491.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) AA4491.The vertical order pertains to the superseded datum. AA4491 AA4491.The geoid height was determined by GEOID99. AA4491 AA4491; North East Units Estimated Accuracy AA4491;SPC MT - 444,620. 897,510. MT (+/- 180 meters Scaled) AA4491 AA4491 SUPERSEDED SURVEY CONTROL AA4491 AA4491 NGVD 29 - 646.36 (m) 2120.6 (f) RESET 3 AA4491 AA4491.Superseded values are not recommended for survey control. AA4491.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA4491.See file dsdata.txt to determine how the superseded data were derived. AA4491 AA4491_U.S. NATIONAL GRID SPATIAL ADDRESS: 13UDP631367(NAD 83) AA4491_MARKER: DV = VERTICAL CONTROL DISK AA4491_SETTING: 37 = BRIDGE WINGWALL AA4491_STAMPING: H 63 RESET 1992 AA4491_MARK LOGO: NGS AA4491_MAGNETIC: N = NO MAGNETIC MATERIAL AA4491_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL AA4491_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR AA4491+SATELLITE: SATELLITE OBSERVATIONS - 1992 AA4491 AA4491 HISTORY - Date Condition Report By AA4491 HISTORY - 1992 MONUMENTED MTDOT AA4491 AA4491 STATION DESCRIPTION AA4491 AA4491'DESCRIBED BY MONTANA DEPARTMENT OF TRANSPORTATION 1992 (DRD) AA4491'5.3 MI (8.5 KM) NORTH ALONG STATE HIGHWAY 13 FROM MACON, ROOSEVELT AA4491'COUNTY, AT A CONCRETE BRIDGE, AND SET IN THE NORTHWEST WINGWALL OF THE AA4491'NEW BRIDGE. 1 National Geodetic Survey, Retrieval Date = MAY 1, 2003 TH0608 *********************************************************************** TH0608 FBN - This is a Federal Base Network Control Station. TH0608 DESIGNATION - MCCABE TH0608 PID - TH0608 TH0608 STATE/COUNTY- MT/ROOSEVELT TH0608 USGS QUAD - FROID SE (1983) TH0608 TH0608 *CURRENT SURVEY CONTROL TH0608 ___________________________________________________________________ TH0608* NAD 83(1999)- 48 15 32.53229(N) 104 22 09.66728(W) ADJUSTED TH0608* NAVD 88 - 702.7 (meters) 2305. (feet) GPS OBS TH0608 ___________________________________________________________________ TH0608 X - -1,055,902.636 (meters) COMP TH0608 Y - -4,121,620.753 (meters) COMP TH0608 Z - 4,736,611.810 (meters) COMP TH0608 LAPLACE CORR- -2.41 (seconds) DEFLEC99 TH0608 ELLIP HEIGHT- 684.76 (meters) (10/12/00) GPS OBS TH0608 GEOID HEIGHT- -17.84 (meters) GEOID99 TH0608 TH0608 HORZ ORDER - A TH0608 ELLP ORDER - THIRD CLASS I TH0608 TH0608.The horizontal coordinates were established by GPS observations TH0608.and adjusted by the National Geodetic Survey in October 2000. TH0608.This is a SPECIAL STATUS position. See SPECIAL STATUS under the TH0608.DATUM ITEM on the data sheet items page. TH0608 TH0608.The orthometric height was determined by GPS observations and a TH0608.high-resolution geoid model. TH0608 TH0608.The X, Y, and Z were computed from the position and the ellipsoidal ht. TH0608 TH0608.The Laplace correction was computed from DEFLEC99 derived deflections. TH0608 TH0608.The ellipsoidal height was determined by GPS observations TH0608.and is referenced to NAD 83. TH0608 TH0608.The geoid height was determined by GEOID99. TH0608 TH0608; North East Units Scale Converg. TH0608;SPC MT - 457,954.916 980,542.683 MT 0.99963030 +3 45 11.1 TH0608;UTM 13 - 5,345,283.952 546,807.413 MT 0.99962692 +0 28 14.1 TH0608 TH0608: Primary Azimuth Mark Grid Az TH0608:SPC MT - MCCABE AZ MK 087 05 25.5 TH0608:UTM 13 - MCCABE AZ MK 090 22 22.5 TH0608 TH0608|---------------------------------------------------------------------| TH0608| PID Reference Object Distance Geod. Az | TH0608| dddmmss.s | TH0608| CQ8572 MCCABE AZ MK 0905036.6 | TH0608| TH0596 BAINVILLE MTN ST TT RELAY MAST APPROX.13.8 KM 0985819.8 | TH0608| TH0613 CULBERTSON MONT DAK UTIL MAST APPROX.13.4 KM 2401249.0 | TH0608| CQ8573 MCCABE RM 1 22.933 METERS 25851 | TH0608| CQ8574 MCCABE RM 2 19.278 METERS 34610 | TH0608|---------------------------------------------------------------------| TH0608 TH0608 SUPERSEDED SURVEY CONTROL TH0608 TH0608 NAD 83(1992)- 48 15 32.53138(N) 104 22 09.66722(W) AD( ) B TH0608 ELLIP HT - 684.86 (m) (05/15/92) GP( ) 4 2 TH0608 NAD 83(1986)- 48 15 32.52894(N) 104 22 09.66290(W) AD( ) 1 TH0608 NAD 27 - 48 15 32.45236(N) 104 22 07.84736(W) AD( ) 1 TH0608 NGVD 29 - 702.09 (m) 2303.4 (f) LEVELING 3 TH0608 TH0608.Superseded values are not recommended for survey control. TH0608.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. TH0608.See file dsdata.txt to determine how the superseded data were derived. TH0608 TH0608_U.S. NATIONAL GRID SPATIAL ADDRESS: 13UEP4680745284(NAD 83) TH0608_MARKER: DS = TRIANGULATION STATION DISK TH0608_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT TH0608_STAMPING: MCCABE 1967 TH0608_MARK LOGO: CGS TH0608_MAGNETIC: N = NO MAGNETIC MATERIAL TH0608_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO TH0608+STABILITY: SURFACE MOTION TH0608_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR TH0608+SATELLITE: SATELLITE OBSERVATIONS - May 30, 2002 TH0608 TH0608 HISTORY - Date Condition Report By TH0608 HISTORY - 1967 MONUMENTED CGS TH0608 HISTORY - 1967 GOOD CGS TH0608 HISTORY - 19911029 GOOD NGS TH0608 HISTORY - 19941003 GOOD MTDOT TH0608 HISTORY - 19960601 GOOD IBC TH0608 HISTORY - 19960909 GOOD NGS TH0608 HISTORY - 19990623 GOOD NGS TH0608 HISTORY - 20001128 GOOD NGS TH0608 HISTORY - 20020530 GOOD NGS TH0608 TH0608 STATION DESCRIPTION TH0608 TH0608'DESCRIBED BY COAST AND GEODETIC SURVEY 1967 (LGB) TH0608'THE STATION IS LOCATED ABOUT 10-1/2 MILES NORTHWEST OF BAINVILLE, TH0608'10-1/2 MILES NORTHEAST OF CULBERTSON, 1 MILE NORTH OF MC CABE AND TH0608'NEAR THE SOUTH EDGE OF A SECTION LINE ROAD. TH0608' TH0608'TO REACH THE STATION FROM THE POST OFFICE IN BAINVILLE, GO NORTH ON TH0608'PAVED STREET FOR 0.3 MILE TO U.S. HIGHWAY 2. TURN LEFT AND GO WEST TH0608'ON U.S. HIGHWAY 2 FOR 1.5 MILES TO A SIDE ROAD RIGHT. TURN RIGHT TH0608'AND GO NORTH ON GRAVELED ROAD FOR 3.9 MILES TO A T-INTERSECTION. TH0608'TURN LEFT AND GO WEST FOR 1.55 MILES TO FORKS. TURN RIGHT AND GO TH0608'NORTH FOR 1.0 MILE TO FORKS. TURN LEFT AND GO WEST FOR 1.75 TH0608'MILES TO ROAD FORKS. TURN RIGHT AND GO NORTH FOR 1.0 MILE TO TH0608'ROAD FORKS. TURN LEFT AND GO WEST FOR 2.25 MILES TO CROSSROADS. TH0608'(THIS IS APPROXIMATELY 0.4 MILE EAST OF THE RAILROAD TH0608'CROSSING IN MC CABE.) TURN RIGHT AND GO NORTH FOR 1.0 MILE TO A TH0608'SECTION LINE ROAD. (TURN RIGHT AND GO EAST FOR 0.2 MILE TO THE TH0608'AZIMUTH MARK ON THE RIGHT.) TURN LEFT AND GO WEST FOR 0.05 MILE TH0608'TO TOP OF A SMALL RISE AND THE STATION. TH0608' TH0608'THE STATION MARK IS A STANDARD DISK, STAMPED MCCABE 1967, SET IN THE TH0608'TOP OF A 12-INCH ROUND CONCRETE MONUMENT THAT IS FLUSH WITH THE TH0608'GROUND SURFACE. IT IS 64.6 FEET SOUTH-SOUTHEAST OF A METAL WITNESS TH0608'POST WITH SIGN, 17.0 FEET SOUTH OF THE CENTER OF A SECTION LINE TH0608'ROAD AND 16.9 FEET NORTH-NORTHEAST OF A METAL WITNESS POST WITH TH0608'SIGN. TH0608' TH0608'REFERENCE MARK 1 IS A STANDARD DISK, STAMPED MCCABE NO 1 1967, SET TH0608'IN THE TOP OF A 12-INCH ROUND CONCRETE MONUMENT THAT PROJECTS TH0608'4-INCHES. IT IS 97 FEET SOUTHWEST OF THE METAL WITNESS POST WITH TH0608'SIGN, 39 FEET SOUTH OF THE CENTER OF THE SECTION LINE ROAD AND 1 TH0608'FOOT NORTH OF A WIRE FENCE. TH0608' TH0608'REFERENCE MARK 2 IS A STANDARD DISK, STAMPED MCCABE NO 2 1967, SET IN TH0608'THE TOP OF A 12-INCH ROUND CONCRETE MONUMENT THAT IS FLUSH WITH THE TH0608'GROUND SURFACE. IT IS 75 FEET NORTH OF THE WIRE FENCE, 43 FEET TH0608'NORTH OF THE CENTER OF THE SECTION LINE ROAD AND 1.1 FEET SOUTH OF TH0608'A METAL WITNESS POST WITH SIGN. TH0608' TH0608'THE AZIMUTH MARK IS A STANDARD DISK, STAMPED MCCABE 1967, SET IN TH0608'THE TOP OF A 12-INCH ROUND CONCRETE MONUMENT THAT PROJECTS TH0608'4-INCHES. IT IS 23 FEET SOUTH OF THE CENTER OF A SECTION LINE TH0608'ROAD, 2.0 FEET NORTHWEST OF A METAL WITNESS POST WITH SIGN AND TH0608'1.5 FEET NORTH OF A WIRE FENCE. TH0608' TH0608'MEASURED DISTANCE BETWEEN REFERENCE MARK 1 AND REFERENCE MARK 2 IS TH0608'96.00 FEET OR 29.260 METERS. TH0608 TH0608 STATION RECOVERY (1967) TH0608 TH0608'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 TH0608'RECOVERED IN GOOD CONDITION. TH0608 TH0608 STATION RECOVERY (1991) TH0608 TH0608'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 TH0608'THE STATION IS LOCATED ABOUT 16.8 KM (10.4 MI) NORTHWEST OF BAINVILLE, TH0608'16.8 KM (10.4 MI) NORTHEAST OF CULBERTSON AND 1.6 KM (1.0 MI) NORTH TH0608'OF MCCABE. TH0608'TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAY 2 AND STATE TH0608'HIGHWAY 16, IN CULBERTSON, GO NORTH ON HIGHWAY 16 FOR 10.96 KM TH0608'(6.81 MI) TO COUNTY HIGHWAY 496 ON THE RIGHT. TURN RIGHT AND GO EAST TH0608'ON HIGHWAY 496 FOR 9.0 KM (5.6 MI) TO A RAILROAD CROSSING IN MCCABE. TH0608'CONTINUE EASTERLY ON HIGHWAY 496 FOR 0.64 KM (0.40 MI) TO A TH0608'CROSSROAD. TURN LEFT AND GO NORTH ON A GRAVEL ROAD FOR 1.6 KM TH0608'(1.0 MI) TO A SECTION LINE CROSSROAD. TURN LEFT AND GO WEST ON THE TH0608'SECTION LINE ROAD FOR 0.16 KM (0.10 MI) TO THE TOP OF THE RISE AND TH0608'THE STATION ON THE LEFT. TH0608'THE STATION IS A STANDARD DISK SET IN THE TOP OF A CONCRETE POST TH0608'PROJECTING 5 CM. LOCATED 5.18 M (16.99 FT) SOUTH OF THE CENTER OF TH0608'THE TRACK ROAD AND 5.12 M (16.80 FT) NORTH-NORTHEAST OF A WITNESS TH0608'POST. TH0608 TH0608 STATION RECOVERY (1994) TH0608 TH0608'RECOVERY NOTE BY MONTANA DEPARTMENT OF TRANSPORTATION 1994 (DRD) TH0608'RECOVERED AS DESCRIBED. TH0608 TH0608 STATION RECOVERY (1996) TH0608 TH0608'RECOVERY NOTE BY INTERNATIONAL BOUNDARY COMMISSION 1996 (MDC) TH0608'RECOVERED AS DESCRIBED. TH0608 TH0608 STATION RECOVERY (1996) TH0608 TH0608'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1996 (CFS) TH0608'RECOVERED AS DESCRIBED. ADD 4.9 M (16.1 FT) NORTH OF A FENCE. TH0608 TH0608 STATION RECOVERY (1999) TH0608 TH0608'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1999 (CSM) TH0608'RECOVERED AS DESCRIBED. NOTE--REFERENCE MARKS 1 AND 2 WERE RECOVERED TH0608'IN GOOD CONDITION. TH0608 TH0608 STATION RECOVERY (2000) TH0608 TH0608'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 TH0608'RECOVERY NOTE BY MT DEPT OF TRANSPORTATION 2000 (DRD) TH0608'RECOVERED AS DESCRIBED TH0608' TH0608 TH0608 STATION RECOVERY (2002) TH0608 TH0608'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2002 (CSM) TH0608'RECOVERED AS DESCRIBED. TH0608' 1 National Geodetic Survey, Retrieval Date = MAY 1, 2003 AA3922 *********************************************************************** AA3922 DESIGNATION - W 18 RESET AA3922 PID - AA3922 AA3922 STATE/COUNTY- MT/ROOSEVELT AA3922 USGS QUAD - MACON (1972) AA3922 AA3922 *CURRENT SURVEY CONTROL AA3922 ___________________________________________________________________ AA3922* NAD 83(1986)- 48 05 58. (N) 105 35 10. (W) SCALED AA3922* NAVD 88 - 604.58 (+/-2cm) 1983.5 (feet) VERTCON AA3922 ___________________________________________________________________ AA3922 GEOID HEIGHT- -17.13 (meters) GEOID99 AA3922 AA3922 VERT ORDER - THIRD (See Below) AA3922 AA3922.The horizontal coordinates were scaled from a topographic map and have AA3922.an estimated accuracy of +/- 6 seconds. AA3922 AA3922.The NAVD 88 height was computed by applying the VERTCON shift value to AA3922.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) AA3922.The vertical order pertains to the superseded datum. AA3922 AA3922.The geoid height was determined by GEOID99. AA3922 AA3922; North East Units Estimated Accuracy AA3922;SPC MT - 435,030. 891,270. MT (+/- 180 meters Scaled) AA3922 AA3922 SUPERSEDED SURVEY CONTROL AA3922 AA3922 NGVD 29 - 603.98 (m) 1981.6 (f) RESET 3 AA3922 AA3922.Superseded values are not recommended for survey control. AA3922.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA3922.See file dsdata.txt to determine how the superseded data were derived. AA3922 AA3922_U.S. NATIONAL GRID SPATIAL ADDRESS: 13UDP563275(NAD 83) AA3922_MARKER: DV = VERTICAL CONTROL DISK AA3922_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA3922_STAMPING: W 18 MORC RESET 1977 AA3922_MARK LOGO: NGS AA3922_MAGNETIC: N = NO MAGNETIC MATERIAL AA3922_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA3922+STABILITY: SURFACE MOTION AA3922 AA3922 HISTORY - Date Condition Report By AA3922 HISTORY - 1977 MONUMENTED NGS AA3922 AA3922 STATION DESCRIPTION AA3922 AA3922'DESCRIBED BY NATIONAL GEODETIC SURVEY 1977 AA3922'2.5 MILES (4.0 KM) EAST ALONG THE GREAT NORTHERN RAILWAY FROM WOLF AA3922'POINT, ON THE LEFT BANK OF THE MISSOURI RAILROAD, 11 POLES WEST OF AA3922'MILEPOST 225, 665 FEET (202.7 M) WEST OF BRIDGE, 330 FEET (100.6 M) AA3922'SOUTH OF TRACK, 75 FEET (22.9 M) NORTH OF DIRT ROAD AND NEAR A WIRE AA3922'FENCE, SET FLUSH WITH THE GROUND. 1 National Geodetic Survey, Retrieval Date = MAY 1, 2003 AI9620 *********************************************************************** AI9620 DESIGNATION - W 542 RESET AI9620 PID - AI9620 AI9620 STATE/COUNTY- MT/ROOSEVELT AI9620 USGS QUAD - POPLAR (1989) AI9620 AI9620 *CURRENT SURVEY CONTROL AI9620 ___________________________________________________________________ AI9620* NAD 83(1986)- 48 06 46. (N) 105 12 54. (W) SCALED AI9620* NAVD 88 - 600.28 (meters) 1969.4 (feet) RESET AI9620 ___________________________________________________________________ AI9620 GEOID HEIGHT- -17.36 (meters) GEOID99 AI9620 AI9620 VERT ORDER - THIRD AI9620 AI9620.The horizontal coordinates were scaled from a topographic map and have AI9620.an estimated accuracy of +/- 6 seconds. AI9620 AI9620.The orthometric height was computed from unverified reset data. AI9620.No vertical observational check was made to the station. AI9620 AI9620.The geoid height was determined by GEOID99. AI9620 AI9620; North East Units Estimated Accuracy AI9620;SPC MT - 437,950. 918,780. MT (+/- 180 meters Scaled) AI9620 AI9620 SUPERSEDED SURVEY CONTROL AI9620 AI9620.No superseded survey control is available for this station. AI9620 AI9620_U.S. NATIONAL GRID SPATIAL ADDRESS: 13UDP839288(NAD 83) AI9620_MARKER: DV = VERTICAL CONTROL DISK AI9620_SETTING: 37 = BRIDGE WINGWALL AI9620_STAMPING: W 542 RESET 2000 AI9620_MARK LOGO: NGS AI9620_MAGNETIC: N = NO MAGNETIC MATERIAL AI9620_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL AI9620 AI9620 HISTORY - Date Condition Report By AI9620 HISTORY - 2000 MONUMENTED MTDOT AI9620 AI9620 STATION DESCRIPTION AI9620 AI9620'DESCRIBED BY MONTANA DEPARTMENT OF TRANSPORTATION 2000 (LKG) AI9620'1.6 KM (1.00 MI) WEST FROM POPLAR. 1.6 KM (1.00 MI) WESTERLY ALONG US AI9620'HIGHWAY NO 2 FROM THE FORT PECK TRIBAL HEADQUARTERS IN POPLAR, IN THE AI9620'SOUTHWEST WINGWALL OF A BRIDGE CROSSING THE POPLAR RIVER, 6.6 METERS AI9620'(21.7 FT) SOUTH OF THE CENTERLINE OF THE HIGHWAY, IN THE WEST ONE AI9620'THIRD OF A 0.6 M (2.0 FT) WIDE WINGWALL. THE MARK IS LEVEL WITH THE AI9620'HIGHWAY.