In Black v. Elkhorn Mining Company, 163 U.S. 445 (1896), summing up as to the character of the right which is granted by the United States to a mining locator, after observing that no written instrument is necessary to create the right, and that it may be forfeited by the failure of the locator to do the necessary amount of work, it was said (p. 450): "(3) His interest in the claim may also be forfeited by his abandonment, with an intention to renounce his right of possession. It cannot be doubted that an actual abandonment of possession by a locator of a mining claim, such as would work an abandonment of any other easement, would terminate all the right of possession which the locator then had. "An easement in real estate may be abandoned without any writing to that effect, and by any act evincing an intention to give up and renounce the same. Snell v. Levitt, 110 N.Y. 595, and cases cited at p. 603 of the opinion of Earl, J.; White v. Manhattan Railway Co., 139 N.Y. 19. If the locator remained in possession and failed to do the work provided for by statute, his interest would terminate, and it appears to be equally plain that if he actually abandoned the possession, giving up all claim to it, and left the land, that all the right provided by the statute would terminate under such circumstances. . . ."