Blasterz had never heard of the National Crustal Motion Network until we discovered this benchmark in the NGS database. Another interesting feature of this disk is that they got the stamping wrong!
From the NGS Datasheet: (
visit link)
"RT0512 CBN - This is a Cooperative Base Network Control Station.
RT0512 DESIGNATION - MILES CITY NCMN
RT0512 PID - RT0512
RT0512 STATE/COUNTY- MT/CUSTER
RT0512 COUNTRY - US
RT0512 USGS QUAD - MILES CITY (1980)
RT0512
RT0512 *CURRENT SURVEY CONTROL
RT0512 ______________________________________________________________________
RT0512 NAD 83 POS- 46 23 47.52964(N) 105 51 38.97756(W) NO CHECK
RT0512* NAD 83 ELLIP HT- 704.110 (m) (06/27/12) NO CHECK
RT0512* NAD 83(2011) EPOCH - 2010.00
RT0512* NAVD 88 ORTHO HEIGHT -720.2(m) 2363(ft) GPS OBS
RT0512 ______________________________________________________________________
RT0512
RT0512_U.S. NATIONAL GRID SPATIAL ADDRESS: 13TDM3382238466(NAD 83)
RT0512
RT0512_MARKER: DH = HORIZONTAL CONTROL DISK
RT0512_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
RT0512_STAMPING: MILES CITY NCNM 1988
RT0512_MARK LOGO: NGS
RT0512_MAGNETIC: N = NO MAGNETIC MATERIAL
RT0512_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
RT0512+STABILITY: SURFACE MOTION
RT0512_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
RT0512+SATELLITE: SATELLITE OBSERVATIONS - August 31, 2013
RT0512
RT0512 HISTORY - Date Condition Report By
RT0512 HISTORY - 1988 MONUMENTED NGS
RT0512 HISTORY - 20010618 GOOD NGS
RT0512 HISTORY - 20130831 GOOD GEOCAC
RT0512
RT0512 STATION DESCRIPTION
RT0512
RT0512'DESCRIBED BY NATIONAL GEODETIC SURVEY 1988
RT0512'PRIMARY SCIENTIFIC PURPOSES - MEASUREMENTS SUPPORTING THE
RT0512'NATIONAL GEODETIC SURVEYS NATIONAL CRUSTAL MOTION NETWORK
RT0512'SITE DESCRIPTION - THIS SITE LOCATED ON THE WEST SIDE OF MILES
RT0512'CITY, MONTANA AT THE BUREAU OF LAND MANAGEMENT DISTRICT
RT0512'STATION ON THE SOUTHEAST SIDE OF THE PROPERTY AT AN AUTOMATIC
RT0512'WEATHER STATION, JUST NORTHEAST OF STATION MILES CITY GPS 1987
RT0512'AND ACROSS THE ROAD FROM MILES CITY CUSTER COUNTY FAIRGROUNDS.
RT0512'THE MARK IS A STANDARD BRASS NGS DISK.
RT0512'SITE TOPO MAP - UNKNOWN
RT0512'GEOLOGICAL PROVINCE - UNKNOWN
RT0512'LOCAL GEOLOGY - UNKNOWN
RT0512
RT0512 STATION RECOVERY (2001)
RT0512
RT0512'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2001 (RGH)
RT0512'THE STATION IS LOCATED ON THE WEST SIDE OF MILES CITY, 0.16 KM
RT0512'SOUTHEAST OF THE DIVISION OF OPERATION FIRE ENGINEERING
RT0512'BUILDING OF THE BUREAU OF LAND MANAGEMENT, IN A PASTURE ON THE
RT0512'NORTHWEST SIDE OF A BARBED WIRE FENCE.
RT0512'
RT0512'OWNERSHIP--BUREAU OF LAND MANAGEMENT. CONTACT TIM MURPHY,
RT0512'MANAGER, PHONE 406-233-2800 ONE DAY IN ADVANCE BEFORE
RT0512'OCCUPYING THIS STATION.
RT0512'
RT0512'TO REACH THE STATION FROM THE JUNCTION OF STATE HWY 59 (7TH
RT0512'STREET) AND MAIN STREET (INTERSTATE HWY 94 BUSINESS ROUTE) IN
RT0512'THE CENTER OF MILES CITY, GO WEST ON MAIN ST FOR 0.5 KM TO THE
RT0512'CENTER OF THE BRIDGE OVER THE TONGUE RIVER. CONTINUE WEST ON
RT0512'BUSINESS ROUTE 94 FOR 0.5 KM TO THE JUNCTION OF A PAVED ROAD
RT0512'ON THE LEFT. TURN LEFT, SOUTHEAST ON THE ROAD 0.32 KM TO THE
RT0512'ENTRANCE DRIVE TO THE BLM DIV OF OPERATION FIRE ENGINEERING
RT0512'BUILDING ON THE RIGHT. TURN RIGHT, WEST INTO ENTRANCE DRIVE
RT0512'AND BEAR LEFT, SOUTHERLY ACROSS THE PAVED PARKING LOT TO THE
RT0512'SOUTHEAST END OF THE BUILDING AND AN OPEN PASTURE. CONTINUE
RT0512'SOUTHEAST, ACROSS THE PASTURE TO THE STATION JUST BEFORE THE
RT0512'FENCE. NOTE--THE DATUM POINT IS A SMALL DIMPLE INSIDE A SMALL
RT0512'TRIANGLE CAST IN THE TOP OF A STANDARD BRASS NGS HORIZONTAL
RT0512'CONTROL DISK SET IN TOP OF A 12-INCH CONCRETE POST.
RT0512'
RT0512'STATION IS 40.0 M SOUTHWEST OF THE PAVED ROAD CENTER, 16.52
RT0512'M NORTH OF NGS STATION MILES CITY GPS, 12.0 M NORTHWEST OF THE
RT0512'FENCE, AND THE STATION IS ABOUT LEVEL WITH THE ROAD AND FLUSH
RT0512'WITH THE GROUND SURFACE. BY R.G. HAYES
RT0512'
RT0512'--NOTE--THE STATION NAME IN THE PREVIOUS DESCRIPTION DOES NOT
RT0512'COINCIDE WITH THE STAMPING ON THE DISK, THE N AND M ARE
RT0512'TRANSPOSED. SHOULD BE NCNM.
RT0512'
RT0512
RT0512 STATION RECOVERY (2013)
RT0512
RT0512'RECOVERY NOTE BY GEOCACHING 2013 (LPC)
RT0512'RECOVERED IN GOOD CONDITION."