Skip to content

Details for Benchmark: TN0856

N 48° 58.578 W 114° 40.491 (NAD 83)

Altitude: 7756

Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED. (more info)

Location:
In FLATHEAD county, MT View Original Datasheet
Designation:
TUCHUCK RESET
Marker Type:
survey disk
Setting:
set into the top of a prefabricated concrete post imbedded in the ground
Stability:
Mark of questionable or unknown stability.

Reference Points

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

Documented History (by the NGS)

01/01/1924 by CGS (MONUMENTED)
01/01/1933 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1933 ON THE HIGHEST POINT OF TUCHUCK MOUNTAIN, A HIGH, PYRAMIDAL, BARE PEAK ABOUT 9 MILES WEST OF THE FLATHEAD RIVER AND ABOUT 1-3/4 MILES SOUTH OF THE INTERNATIONAL BOUNDARY. STATION MARK--A STANDARD U.S.G.S. BRONZE-DISK STATION MARK SET IN A GREEN SCHIST ROCK. THE U.S. COAST AND GEODETIC SURVEY RECOVERED THE STATION IN 1924 AND RE-MARKED THE POINT BY USING THE ORIGINAL DISK AND STONE FOR A SUBSURFACE MARK AND PLACING A STANDARD U.S.C. AND G.S. BRONZE-DISK STATION MARK IN A LARGE BLOCK OF STONE ABOVE IT. TWO REFERENCE MARKS WERE SET IN ROCK OUTCROP BUT NO OTHER RECORD OF THEM IS GIVEN. ALL THREE OF THE MARKS WERE STAMPED TUCHUCH BY MISTAKE INSTEAD OF TUCHUCK.
01/01/1939 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1939 (ANS) LOCALITY--FLATHEAD NATIONAL FOREST. CHECKED ORIGINAL DESCRIPTION AND ROUTE TO STATION DESCRIBED BY E.B.P., 1934. HOWEVER, NEW LOOKOUT HOUSE HAS BEEN ERECTED NEAR STATION SINCE LAST OCCUPIED. DIFFERED SLIGHTLY ON REFERENCE MARK DISTANCES, 5 TO 6 MINUTES ON REFERENCE MARK DIRECTIONS. TUCHUCK IS 9 MILES WEST OF FLATHEAD RIVER, 2 MILES SOUTH OF THE INTERNATIONAL BOUNDARY ON HIGHEST POINT OF TUCHUCK MOUNTAIN. STATION MARK AS DESCRIBED. IT IS 8.88 METERS NORTH-NORTHEAST OF CENTER OF LOOKOUT HOUSE, 6.2 METERS NORTH OF NORTHEAST CORNER, 7.85 METERS NORTHEAST BY NORTH OF NORTHWEST CORNER, 10 FEET SOUTH AND 1 FOOT LOWER THAN HIGHEST POINT OF PEAK, STAMPED TUCHUCK 1924. A U.S. GEOLOGICAL SURVEY TABLET IS SUBSURFACE MARK. REFERENCE MARK NO. 1 (SOUTH), NOT STAMPED WITH NUMBER, AS DESCRIBED. IT IS 11.3 METERS SOUTH OF SOUTHEAST CORNER OF LOOKOUT HOUSE, 12.8 METERS SOUTHEAST BY SOUTH OF SOUTHWEST CORNER OF LOOKOUT HOUSE, 6 FEET LOWER THAN STATION STAMPED TUCHUCK 1924, OUTCROP PROJECTS 6 INCHES. REFERENCE MARK NO. 2 (WEST-SOUTHWEST), NOT STAMPED WITH NUMBER, IS SET IN ROCK OUTCROP, ROUGHLY 2 BY 1-1/2 FEET IN SIZE, 9.1 METERS WEST BY WEST-NORTHWEST OF NORTHWEST CORNER OF LOOKOUT HOUSE, AND 10.3 METERS NORTHWEST BY WEST OF SOUTHWEST CORNER, 6 FEET LOWER THAN STATION, STAMPED TUCHUCK 1924, MARK PROJECTS 7 INCHES. AZIMUTH MARK, AS DESCRIBED. IT IS ABOUT 1 MILE BY TRAIL, 1/2 MILE AIRLINE FROM STATION. MARK IS ABOUT 35 FEET EAST-SOUTHEAST DOWNHILL FROM TRAIL, AND 45 FEET EAST-SOUTHEAST OF PINE WITH THREE BLAZES, WHICH IS ON RIDGE CREST 3 FEET SOUTH OF TRAIL. MARK IS 12 FEET NORTH OF RIDGE CREST, 100 YARDS TOWARD STATION FROM JUNCTION OF THREE TRAILS, NUMBERS 19, 20 AND 23. MARK IS STAMPED TUCHUCK 1939. ELEVATION OF STATION 7,724 FEET, FOREST SERVICE DATA. TO REACH FROM COLUMBIA FALLS, WHICH IS 2 MILES NORTH OF U.S. HIGHWAY 2, GO NORTH ON THE MAIN ROAD UP WEST SIDE OF FLATHEAD RIVER FOR 33 MILES TO MORAN RANGER STATION, CONTINUE ON MAIN ROAD NORTH FOR 18 MILES, PASSING FORD RANGER STATION AND THE SETTLEMENT OF TRAIL CREEK, AND TURN LEFT (EAST) ON THE TRAIL CREEK ROAD, GO 8.7 MILES TO THE BRIDGE OVER TUCHUCK CREEK AND TRAIL AT RIGHT (NORTH) SIDE OF ROAD. TAKE THIS TRAIL, NO. 23, OR TUCHUCK LOOKOUT TRAIL, FOR ABOUT 8 MILES TO SUMMIT OF TUCHUCK MOUNTAIN AND STATION.
01/01/1960 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (OSR) THE STATION, REFERENCE MARKS 1 AND 2 AND THE AZIMUTH MARK WERE RECOVERED. THE LOOKOUT HOUSE HAS BEEN DESTROYED BY FIRE AND ALL THAT REMAINS ARE SCATTERED BOULDERS THAT FORMED THE FOUNDATION. THE AZIMUTH MARK WAS SURROUNDED BY A WALL OF ROCK ABOUT 2 FEET HIGH AND 1 FOOT THICK TO FACILITATE FUTURE RECOVERY. A HELLICOPTER CAN LAND ABOUT 300 YARDS EAST OF THE MARK. THE HORIZONTAL DIRECTIONS TO THE REFERENCE MARKS CHECKED THE 1924 OBSERVATIONS. THE DISTANCES TO THE REFERENCE MARKS AGREED WITH THE 1939 MEASUREMENTS. THE REFERENCE MARKS WERE STAMPED NO 1 AND NO 2, NUMBER ONE BEING SOUTH OF THE STATION AND NUMBER 2 SOUTHWEST. EXCEPT FOR THE AFORESAID THE 1939 DESCRIPTION IS CORRECT AND ADEQUATE. THIS PARTY VISITED THE STATION BY HELICOPTER.
01/01/1966 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1966 (CFL) RECOVERED BY HELICOPTER. STATION MARK- STANDARD USC AND GS DISK SET IN ROCK FLUSH WITH GROUND STAMPED, -TUCHUCK 1924.- NOTE - CGS STATES THAT THEY RECOVERED THE USGS TABLET AND USED IT AS AN UNDERGROUND MARK.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in July 1992.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.