April 4, 1934: "Materials for 10 new lookout towers and observatory building to be placed on the Lolo national forest this spring and summer have been ordered. One location will be: Superior district--Thompson peak." (The Missoulian)
1934: A 30-foot round timber tower with an L-4 cab was erected.
September 27, 1935: "John Castles has returned to Superior after a tour of 90 days at the Thompson creek lookout station." (The Missoulian)
1970: The tower was condemned after an inspection.
1984: A new cinder block lookout building was constructed next to the old tower, after the transfer of duties was made the old tower was removed.