_Location notice_ containing name of lode or claim, name of locator(s), date of location, linear feet claimed each way from point of discovery along the vein or lode and width on each side of the vein or lode, and the general course of the vein or lode, defining the boundaries and reference to natural object or permanent monument. _Monumentation_: Within 30 days after posting mark with six substantial posts, not less than three feet above ground and not less than four inches square or in diameter, or substantial mounds of stone or earth and stone, one at each corner and one at each center end. _Recording_: Within 60 days from posting, file for record with the county clerk a copy of the location notice. Placer Claims: _Location notice_: containing name of claim, name of locator(s), date of location, number of feet or acres claimed, and a description by legal subdivisions or with reference to a natural object or permanent monument, to be posted at some conspicuous place on the claim. _Monumentation_: Unless located by legal subdivisions, corners shall be monumented with same size materials designated for lodes, with monuments no less than 1320 feet apart. _Recording_: Same as for lodes. Mill Sites: _Location notice_ same as for placer claims except for reference to appurtenant mining claim (lode or placer). _Monumentation_: Same as for placers. _Recording_: Copy of location notice to be recorded within 30 days. Other: _Amended notices_ of location provided for. _Annual labor_ affidavit provided for; file within 30 days of completion of work. _Legal Subdivision_ includes a subdivision of a state survey. _Discovery or Location Work_: None required. Law amended in 1971. 1–43 SOUTH DAKOTA Lode Claims: _Location notice_ to be posted at the place of discovery on discovery monument, containing name of lode, name of locator(s), date of discovery, feet in length on each side of discovery and feet in width on each side of lode. _Monumentation_: Eight substantial posts hewed or blazed on the side facing claim, one at each corner, one at each end of the lode and one at the center of each side line, sunk in the ground, or in mound of stone if on bedrock, marked with the name of the lode and the corner, end or side. _Recording_: Sixty days from date of discovery file for record with the county register of deeds a location certificate containing the same information as in the location notice, except date of location instead of date of discovery, and in addition the general course of the vein and a description with reference to a natural object or permanent monument. Placer and other mining claims: No state law. Other: _Additional certificate and relocation_, both by owner and abandoned claims, provided for. _Annual labor_: Same as federal, affidavit provided for, no time limit for recording. _Surface owner_ may demand security from miner.