The term 'labor' where used in AS 27.10.130 and 27.10.150 includes, without being limited to, geological, geochemical, and geophysical surveys conducted by qualified experts and verified by a detailed report recorded in the recording district office in which the claim is located that sets forth fully (1) the location of the work performed in relation to the point of discovery and boundaries of the claim, (2) the nature, extent, and cost thereof, (3) the basic findings therefrom, and (4) the name, address, and professional background of the person or persons conducting the work. Surveys of this kind, however, may not be applied as labor for more than two consecutive years or for more than a total of five years on any one mining claim, and each of these surveys shall be nonrepetitive of any previous survey on the same claim.
Alaska Legal Code