May 3, 1939: "Work was started this week by the Indian C.C.C. department on the erection of two 50-foot steel tower lookouts in this section. One is being erected on the Irvine Flats section and the other on the north side of the Big Draw section. Roads to the two lookout sites were constructed last year and after the completion of the lookout stations, telephone lines will be installed. It is expected that work on the lookouts will be completed about July 1. With conditions unusually dry for this time of the year, Indian officials fear a busy fire season this year." (The Independent Record)
July 12, 1979: "Kathy Felsman, Arlee, is presently at the Irvine Lookout and has been working in the towers for seven years." (The Flathead Courier)
National Geodetic Survey
DESIGNATION - IRVINE LO ET PID - SU0953 STATE/COUNTY- MT/LAKE COUNTRY - US USGS QUAD - IRVINE LOOKOUT TOWER (1964)
DESCRIBED BY US GEOLOGICAL SURVEY 1960 LOCATED ABOUT 7 MI. SW. OF ELMO, MONTANA, ABOUT 3 MI. S. OF STATE HIGHWAY 28, ON A HIGH E-W. RIDGE.