1v. register (a claim) for a staked piece of land.
1910  . . . first thing in the mornin' we'll hike to the outside an' file the claim.
1912  At intervals we came to square posts driven into the earth, with inscriptions in lead pencil to the effect that so-and-so hereby gave notice of his intention to file a claim, etc., etc., with dates thirteen years old and upwards.
2v.file on, make application for a mining claim or other tract of land.
1900  . . . Edwin Bentham . . . filed on Bench Claim 23, second tier, of French Hill.
1945  Miss Hind knew of the homesteaders standing in queues for a day and a night and a day and a night, that they might "file" on the quarter section of their choice.
1963  Amos had filed on a quarter by the creek, and had a small log shack sheltered against a cut bank. . . .