Section 41
SEC. 41. When a claim has been located the locator shall immediately mark the line between posts number one and two so that it can be distinctly seen. The locator shall also place a post at the point where he has found minerals in place, or on the surface vertically above such point if the discovery be underground, on which shall be written "Discovery post": Provided, That when the claim is surveyed the surveyor shall be guided by the records of the claim, the sketch plan in the declaration of location made by the locator when the claim was located and recorded, posts number one and two, and the notice on number one, the initial post. In cases where, from the nature or shape of the ground, it is impossible to mark the location line of the claim as provided in this Act, then the claim may be marked by placing posts as nearly as possible to the proper position of number one and number two posts, and noting thereon the distance and direction of such posts from such positions, which distance and direction shall be set out in the declaration of location of the claim.