Lamont (Nine-mile) Creek is a southeast-flowing tributary of Whipsaw Creek, about 9 kilometres long, 11 to 13 kilometres southwest of Princeton.
The creek occupies a fairly broad and open valley extending southeast from a divide separating it from Granite Creek to the west. Placer deposits were mined in this valley in the early 1900's, and are now reported to be largely exhausted (Geological Survey of Canada Summary Report 1922, page 118A). The Similkameen Placer Syndicate held a lease on the creek in 1925.