National Geodetic Survey, Retrieval Date = AUGUST 29, 2020 TN0929 *********************************************************************** TN0929 DESIGNATION - BLUE TN0929 PID - TN0929 TN0929 STATE/COUNTY- MT/LINCOLN TN0929 COUNTRY - US TN0929 USGS QUAD - VERMICULITE MOUNTAIN (2017) TN0929 TN0929 *CURRENT SURVEY CONTROL TN0929 ______________________________________________________________________ TN0929* NAD 83(1992) POSITION- 48 29 55.00232(N) 115 27 10.73083(W) ADJUSTED TN0929* NAVD 88 ORTHO HEIGHT - 1842.1 (meters) 6044. (feet) VERTCON TN0929 ______________________________________________________________________ TN0929 GEOID HEIGHT - -15.687 (meters) GEOID18 TN0929 LAPLACE CORR - 12.76 (seconds) DEFLEC18 TN0929 HORZ ORDER - FIRST TN0929 TN0929.The horizontal coordinates were established by classical geodetic methods TN0929.and adjusted by the National Geodetic Survey in July 1992. TN0929. TN0929.The NAVD 88 height was computed by applying the VERTCON shift value to TN0929.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) TN0929 TN0929.Significant digits in the geoid height do not necessarily reflect accuracy. TN0929.GEOID18 height accuracy estimate available here. TN0929 TN0929.Click photographs - Photos may exist for this station. TN0929 TN0929.The Laplace correction was computed from DEFLEC18 derived deflections. TN0929 TN0929. The following values were computed from the NAD 83(1992) position. TN0929 TN0929; North East Units Scale Factor Converg. TN0929;SPC MT - 488,824.579 160,595.967 MT 0.99973100 -4 21 16.7 TN0929;SPC MT - 1,603,755.18 526,889.66 iFT 0.99973100 -4 21 16.7 TN0929;UTM 11 - 5,372,876.898 614,282.617 MT 0.99976046 +1 09 31.5 TN0929 TN0929! - Elev Factor x Scale Factor = Combined Factor TN0929!SPC MT - 0.99971385 x 0.99973100 = 0.99944492 TN0929!UTM 11 - 0.99971385 x 0.99976046 = 0.99947437 TN0929 TN0929: Primary Azimuth Mark Grid Az TN0929:SPC MT - ZEIGLER 062 26 48.6 TN0929:UTM 11 - ZEIGLER 056 56 00.4 TN0929 TN0929_U.S. NATIONAL GRID SPATIAL ADDRESS: 11UPP1428272876(NAD 83) TN0929 TN0929|---------------------------------------------------------------------| TN0929| PID Reference Object Distance Geod. Az | TN0929| dddmmss.s | TN0929| TN0895 ZEIGLER APPROX.16.4 KM 0580531.9 | TN0929| CH6486 BLUE RM 2 15.077 METERS 20054 | TN0929| TN0927 BLUE MOUNTAIN 23.994 METERS 31332 | TN0929| TN0926 BLUE MOUNTAIN LOT 24.554 METERS 31628 | TN0929| CH6485 BLUE RM 1 14.025 METERS 34418 | TN0929| TN0928 BLUE MTN GENERAL TEL CO MAST 53.154 METERS 35049 | TN0929|---------------------------------------------------------------------| TN0929 TN0929 SUPERSEDED SURVEY CONTROL TN0929 TN0929 NAD 83(1986)- 48 29 55.01492(N) 115 27 10.73481(W) AD( ) 1 TN0929 NAD 27 - 48 29 55.18421(N) 115 27 07.12596(W) AD( ) 1 TN0929 NGVD 29 (07/19/86) 1840.8 (m) 6039. (f) VERT ANG TN0929 TN0929.Superseded values are not recommended for survey control. TN0929 TN0929.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. TN0929.See file dsdata.pdf to determine how the superseded data were derived. TN0929 TN0929_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION TN0929_SETTING: 66 = SET IN ROCK OUTCROP TN0929 TN0929 HISTORY - Date Condition Report By TN0929 HISTORY - 1959 MONUMENTED CGS TN0929 HISTORY - 1960 SEE DESCRIPTION CGS TN0929 HISTORY - 1963 GOOD USGS TN0929 TN0929 STATION DESCRIPTION TN0929 TN0929'DESCRIBED BY COAST AND GEODETIC SURVEY 1959 (OSR) TN0929'STATION IS LOCATED ABOUT 7-1/2 MILES NORTH AND 4-1/2 MILES EAST TN0929'OF LIBBY, 8 MILES WEST OF WARLAND, NEAR THE NORTHEAST CORNER TN0929'OF SECTION 32, T 32 N, R 30 W, ON THE HIGHEST PART OF BLUE TN0929'MOUNTAIN AT THE SITE OF THE BLUE MTN LOOKOUT TOWER. TN0929' TN0929'TO REACH FROM THE NORTHEAST END OF THE KOOTENAI RIVER BRIDGE, TN0929'IN LIBBY, GO NORTHEASTERLY ON STATE HIGHWAY 37 FOR 21.3 MILES TN0929'TO A SIDE ROAD SHARP LEFT. CONTINUE ON HIGHWAY FOR 1.6 MILES TN0929'TO AN ANGLING CROSSROAD AT SIGN 18 BLUE MOUNTAIN LOOKOUT. TN0929'TURN LEFT, LEAVING HIGHWAY, AND FOLLOW GRAVELED ROAD NORTH AND TN0929'WEST FOR 1.6 MILES TO A FORK. TAKE THE LEFT FORK AND CONTINUE TN0929'WESTERLY FOR 6.8 MILES TO A FORK AT SIGN 5 BLUE MOUNTAIN TN0929'LOOKOUT. TAKE THE LEFT FORK AND FOLLOW GRADED WOODS ROAD UP TN0929'GRADE SOUTHERLY FOR 4.15 MILES TO THE LOOKOUT TOWER AT TN0929'THE TOP OF THE MOUNTAIN AND THE STATION AS DESCRIBED. TN0929' TN0929'STATION MARK IS A STANDARD DISK, STAMPED BLUE 1959, CEMENTED TN0929'IN A DRILL HOLE IN BEDROCK FLUSH WITH THE SURROUNDING SURFACE. TN0929'IT IS 81 FEET SOUTHEAST OF THE SOUTHWEST LEG OF THE LOOKOUT TN0929'TOWER AND 48 FEET SOUTH-SOUTHEAST OF THE NORTHEAST CORNER OF TN0929'A SMALL CABIN. TN0929' TN0929'REFERENCE MARK 1 IS A STANDARD DISK, STAMPED BLUE NO 1 1959, TN0929'CEMENTED IN A DRILL HOLE IN A 3 X 4 FOOT BOULDER PROJECTING TN0929'8 INCHES. IT IS 52 FEET EAST-SOUTHEAST OF THE LOOKOUT TOWER TN0929'LEG AND 14 FEET EAST-SOUTHEAST OF THE CABIN CORNER. TN0929' TN0929'REFERENCE MARK 2 IS A STANDARD DISK, STAMPED BLUE NO 2 1959, TN0929'CEMENTED IN A DRILL HOLE IN BEDROCK FLUSH WITH THE SURROUNDING TN0929'SURFACE. IT IS 105 FEET SOUTH-SOUTHEAST OF THE LOOKOUT TOWER TN0929'LEG AND 88 FEET SOUTH OF THE CABIN CORNER. TN0929' TN0929'A TRAVERSE CONNECTION WAS MADE TO THE DETERMINED CENTER OF THE TN0929'BASE OF THE LOOKOUT TOWER AND TO THE CENTER OF THE BASE OF THE TN0929'MICRO-WAVE MAST. TN0929' TN0929'BLUE MTN (USFS) IS A U.S. FOREST SERVICE MARK, STAMPED BLUE TN0929'MTN. IT IS A 2 INCH BRONZE CAP BOLTED TO THE TOP OF AN 1-1/2 TN0929'INCH IRON PIPE PROJECTING 14 INCHES. IT IS 11.4 FEET TN0929'WEST-NORTHWEST OF THE SOUTHEAST LEG OF THE LOOKOUT TOWER AND 8.5 TN0929'FEET EAST-NORTHEAST OF THE SOUTHWEST LEG OF THE LOOKOUT TOWER. A TN0929'TRAVERSE CONNECTION WAS MADE TO THIS MARK WITH A 30 METER STEEL TN0929'TAPE. THE MARK WAS FOUND TO BE LOOSE IN THE GROUND SO DID TN0929'NOT APPEAR TO WARRANT A SECOND ORDER TRAVERSE. TN0929 TN0929 STATION RECOVERY (1960) TN0929 TN0929'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (OSR) TN0929'STATION WAS RECOVERED AS PREVIOUSLY DESCRIBED BY OSCAR S. RISVOLD TN0929'IN 1959. TN0929 TN0929 STATION RECOVERY (1963) TN0929 TN0929'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1963 (JRM) TN0929'STATION MARK- STANDARD USC AND GS DISK STAMPED, -BLUE 1959-, CEMENTED TN0929'IN DRILL HOLE IN BED ROCK FLUSH WITH GROUND.