September 15, 1928: "A total of 13 guard cabins and lookout stations have been completed or are nearing completion on the Lolo forest this year as part of the most ambitious improvement program ever attempted by the Lolo National forest, it was announced yesterday by Supervisor C. D. Simpson who has just returned from an inspection trip over the river districts. Among the new structures: Diablo." (The Daily Missoulian)
1965: R-6 cab atop a concrete first floor. (Kresek)
National Geodetic Survey
DESIGNATION - DIABLO MTN PID - RY0873 STATE/COUNTY- ID/IDAHO COUNTRY - US USGS QUAD - JEANETTE MOUNTAIN (1994)
DESCRIBED BY US GEOLOGICAL SURVEY 1966 LOCATED ABOUT 50 MI. (AIRLINE) SW. OF MISSOULA, MONTANA, 22.9 MI. WNW. OF HAMILTON, MONTANA, ON TOP OF DIABLO MOUNTAIN.
TO REACH FROM POWELL RANGER STATION, DRIVE 20 MI. S. TO ELK SUMMIT GUARD STATION, THENCE PACK E. 1 MI. ON BIG SAND CREEK TRAIL TO TRAIL JUNCTION, THENCE PACK 3 MI. SE. ON DIABLO MOUNTAIN TRAIL TO TOP OF DIABLO MOUNTAIN AND STATION.