Claim staking is the required procedure of marking the boundaries of the mining claim, typically with wooden posts or substantial piles of rocks. Each western state has slightly different requirements for claim staking. Once the claim is staked, the prospector documents the claim by filing required forms. Originally the forms were filed with the mining district recorder; today they are filed with the Clerk of the County in which the claim is located, and with the US Bureau of Land Management. Papers are likewise filed to document annual assessment work.