September 30, 1935: Panorama photos taken by Osborne.
May 13, 1938: "Memorandum to accompany preliminary sketch for 1-car garage and storage. Under date of May 10 the Malheur states: 'We desire to construct a garage and storage building combination on each Aldrich Mtn. and Thorn Butte.' These two points should therefore be included with the 3 others covered by the attached preliminary sketch. This construction approved by operation." (O-Improvements, General, Malheur)
August 2, 1940: "Camp Canyon Creek has established two side camps in the Malheur National Forest, one being at Murderers Creek and it has 48 men and two foremen. This camp is engaged in telephone line work and also constructing garage at the Thorn Butte lookout." (John Day Valley Ranger)
National Geodetic Survey
DESIGNATION - THORN CREEK BUTTE PID - QC1003 STATE/COUNTY- OR/GRANT COUNTRY - US USGS QUAD - BIG WEASEL SPRS (1983) STATION DESCRIPTION
DESCRIBED BY US FOREST SERVICE 1933 (FGJ) THIS INTERSECTED POSITION IS A STATION OF THE U.S. FOREST SERVICE ON THORN CREEK BUTTE, ABOUT 15 MILES SE OF DAYVILLE. THE POINT IS ON A TRUCK ROAD. STATION MARKED BY A U.S.F.S. DISK IN A CONCRETE POST. FROM THE DISK THORN CREEK BUTTE LOOKOUT HOUSE, SITTING ON THE GROUND, IS DISTANT 24.23 METERS (79.5 FEET) NE IN AZIMUTH 217 DEG 35 MIN. THE MEASUREMENT IS TO THE CENTER OF THE HOUSE.
NOT BY U.S.F.S. TRIANGULATION.
STATION RECOVERY (1958)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1958 THE LOOKOUT TOWER WAS DESTROYED AND THE USFS MARK WAS NOT RECOVERED. PRESUMED DESTROYED AT THE SAME TIME AS THE LOOKOUT.