All buildings of the town are now gone, and the land is now privately owned farmland.

[1] Flatwillow's post office first opened on March 27, 1883 and closed on April 15, 1907, only to be reopened on August 1, 1908.

It can alternate between periods of extreme cold and milder stretches with days well above freezing.

Spring comes quickly in March, but snow can still occur as late as May.

This Petroleum County, Montana state location article is a stub.