July 1, 1939: "The lookout of Red mountain in the back portion of the Lincoln area will be replaced by one at Stonewall mountain which overlooks a considerable area of the Lincoln valley. To occupy the Red mountain station it was necessary to pack wood and water several miles. Often the lookout man there needs the help of a second man." (Independent)
March 30, 1941: Since the Civilian Conservation Corps camp was established at Rimini in June 1939, a lookout house and tower for fire control were built on Stonewall mountain near Lincoln. (The Independent Record)
August 12, 1951: "Monte Supola, lookout at Stonewall mountain in the Lincoln back country, remained at his station today. No motor trails extend to the top of the mountain and he must come out of the area on horseback." (The Independent Record)
September 13, 1953: "Richard Sandman, Stonewall mountain lookout, has returned to forestry school at Montana State university." (The Independent Record)
December 2008: Sometime around the end of the year the roof of the cab was blown off and was carried about 70 yards from the lookout. Temporary repairs were made until the weather permits to make a permanent fix.
July 19, 2017: With an active wildfire threatening, fire crews have wrapped the lookout in a fire resistant protective material.
National Geodetic Survey
DESIGNATION - STONEWALL LOOKOUT TOWER PID - ST0520 STATE/COUNTY- MT/LEWIS AND CLARK COUNTRY - US USGS QUAD - STONEWALL MOUNTAIN (1968) STATION DESCRIPTION
DESCRIBED BY COAST AND GEODETIC SURVEY 1956 (WFD) THE STATION IS ABOUT 6 MILES NORTH OF LINCOLN, ON THE HIGHEST POINT OF STONEWALL MOUNTAIN. THE STRUCTURE IS 22.6 FEET HIGH AND THE POINT OBSERVED ON AND MEASURED TO WAS THE DETERMINED CENTER OF THE BASE. THE DISTANCE WAS FOUND TO BE 243.30 FEET OR 74.158 METERS.
STATION RECOVERY (1965)
RECOVERY NOTE BY US FOREST SERVICE 1965 THIS TOWER, BUILT IN 1950, IS REPORTED TO HAVE BEEN REMOVED IN 1964.
STATION RECOVERY (1968)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1968 FS LOOKOUT TOWER HAS BEEN DESTROYED. NO LOOKOUT TOWER ON THE MOUNTAIN AT PRESENT TIME.
AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--ABOUT 6 MILES N OF LINCOLN, MONTANA.