November 3, 1944: "O-Plans-Master-Project Work Budget Name of Station - Round Mountain Lookout. Type of Building - Lookout building with living quarters for 2. Other buildings and utilities - 1. Garage and tool and wood storage, 2 car J 21 Type. 2. Water Storage. 3. Windcharger. 4. Latrine. Remarks - Approved for 1 fireman and 1 lookout, present structure inadequate." (From Acting Forest Supervisor, Modoc to Regional Forester)
1946: During the period of 1942 through 1946 this lookout made 30 first discoveries.
September 20, 1956: "It was recommended to install a weather station at Round Mountain L.O. since that area was not covered by any weather station. As yet we have received no Fire Weather Records from Round Mountain. We wonder if that fire weather station was set up this year. If not, could you give us an idea when it might go into operation? It takes a season's weather data before we can incorporate a station into the FDR system." (Memo from the Division of Forest Fire Research to the Forest Supervisor, Modoc NF)
July 22, 1957: "Made a familiarization trip to this location in time to assist in explaining weather observations to the new substitute Lookout. The thermometer shelter is rather shaky and Mr. Aiken plans to stake it down more firmly." (Report - Weather Bureau Inspection)
2002: The lookout structure underwent extensive remodeling.