_Recording_: Within 30 days file for record with the county recorder duplicate certificates similar in all respects to the notice posted. _Maps_: Two copies of a map, not exceeding three by four feet in size to be filed for record with the location certificates. Tunnel Rights: _Location notice_ to be posted at the face or point of commencement containing the name of the locator(s) and post office address, proposed course or direction of tunnel, height and width thereof, position and character of boundary monuments and reference to natural object or permanent monument. _Monumentation_: Line of tunnel to be staked at intervals of not more than 300 feet from commencement to 3000 feet therefrom; monuments to be the same as for lodes and placers. _Recording_: Within 60 days record with county recorder (duplicate certificates) similar in all respects to notice posted. _Maps_: File for record, with location certificate, two copies of a map as required for lodes. Other: _Amended locations and certificates_ and _relocation_ of abandoned claims are provided for. Affidavits of _annual labor_ are provided for; to be recorded 60 days from completion of work. _Discovery or Location Work_: None required, other than the map (law amended in 1971). _False information_ willfully made on location certificates or maps a felony punishable by no less than three nor more than ten years in the state prison. _Survey_ with field notes and certificate of survey incorporated into the record by U.S. Mineral Surveyor or land surveyor licensed in Nevada, _prima facie_ evidence of the facts therein. _Location Survey_: United States Mineral Surveyors are permitted to make location surveys. 1–40 NEW MEXICO Lode Claims: _Location Notice_ containing name of locator(s), intent to locate the mining claim, (name of claim) and description by reference to natural object or permanent monument (date). _Monumentation_: Mark the location on the ground so that its boundaries may be readily traced. Four substantial posts or monuments, one at each corner. No specifications. _Discovery Work_: A shaft, cut, tunnel or adit at least ten feet below surface disclosing mineral in place completed within 90 days of taking possession; or a drill hole not less than one and one-half inches in diameter, ten feet or more in depth, disclosing a valuable mineral deposit in place. A substantial post or marker at least thirty inches high inscribed with the name of claim, claim owner, depth of hole and date drilled shall be placed within five feet of the hole. In addition, an affidavit by the owner giving the date of the hole, location within the claim, and mineral discovered shall be recorded in the office of the county clerk within the 90 days. _Recording_: File for record a copy of the location notice with the county clerk within three months from date of posting. Placer Claims: