Lode Surveys
The 1872 General Mining Act allowed US citizens who followed the procedures outlined therein to file a claim, provided the minerals were on public lands. There are two kinds of claims: lode and placer.[1]
The first step in the process of obtaining a lode claim certificate was to provide a drawing of the lode claim area, usually done by a surveyor, that would outline the area in which the miner intended to extract minerals.
Here we have examples of surveys for the Phillips Lode in 1874, the Whale Lode in 1875, and the Present Help Lode from 1880.