Each mineral surveyor should obtain a copy of the state mining laws as soon as possible after receiving an order for survey in that state. The Chief, Branch of Cadastral Survey of each state office should have an up-to-date copy of the laws for his state, and advise the Chief, Division of Cadastral Survey at Washington, D.C. of changes as they occur so that he may keep all mineral surveyors advised. Copies of state laws, in pamphlet form, are usually available from the State Bureau of Mines or Geological Survey, the Secretary of State or Attorney General. Do not confuse state laws pertaining to the location of mining claims on the public domain with state laws covering the location of state lands. Arizona, for instance, allows the staking of mining claims on state lands and publishes rules and regulations governing such appropriation. Most states, however, lease their minerals. Following is an abstract of the state laws in force so that mineral surveyors and cadastral surveyors will have an immediate source of information. The abstract is by no means complete, but contains only the essentials, and is not a substitute for the laws themselves. 1–28 ALASKA Lode Claims: _Location notice_ containing name of claim, name of locator(s), date of location and approximate bearings and distances between corners shall be posted at the northeast corner of the claim. Substantial _monuments_ of stone or posts not less than three feet high and three inches in diameter, marked with name of claim, position or corner number and direction of boundary lines to be erected at each corner; witness corners shall be marked to indicate position of true corner. Cut out, blaze or mark boundary lines. _Location Certificate_: Record in recording district (Alaska does not have counties) within 90 days of posting, containing in addition to information contained in the location notice, length and width of claim and reference to a natural object or permanent monument. (Late filing prior to intervening rights renews the location.) Placer Claims: _Location notice_ containing same information as lodes, except giving length and width rather than metes and bounds, to be posted on one of the corners. _Monumentation_: same as for lodes. _Location Certificate_ and recording: same as for lodes. _Restrictions on precious metal_ placers are: 1. Individual claims limited to 20 acres and 1320 feet, aggregate length. 2. Association claims limited to 40 acres and 2640 feet in length. 3. Location by agent to be supported by recorded power of attorney, limited to two principals per agent in any recording district. 4. Annual labor of $100 for each 20 acres or excess fraction required. Other: _Amended_ locations, notices and certificates are provided for. _Annual Labor_: Requirements same as federal law, except for precious metal placers, but in conflict with the Act of October 21, 1976 regarding failure to file. _Discovery Work_: None required. 1–29 ARIZONA