Stephen Johnson Field,
United States v. Iron Silver Mining…
“ A prudent miner acting wisely in taking up a claim, whether for a placer mine, or for a lode or vein, would not overlook such circumstances, and they may in fact control his action in making the location. If the land contains gold or other valuable deposits in loose earth, sand, or gravel, which can be secured with profit, that fact will satisfy the demand of the government as to the character of the land as placer ground, whatever the incidental advantages it may offer to the applicant for a patent. ”
