(a) In AS 34.35.125 - 34.35.170,

(1) “dump” or “mass” means the mineral-bearing sands, gravel, earth, ore, stone, coal, oil, gas, other fluids or minerals extracted, hoisted, and raised from a mine or mining claim, while in mass at the mine or on the mining claim or adjacent to it, whether it is deposited in dumps or piles, or placed in hoppers, tanks, or reservoirs, or in sluice boxes or bunkers or other receptacles and whether partially or wholly reduced from its primary state or not;

(2) “mill” or “machine” includes a dredge, steam, internal combustion or electric shovel, dragline, tractor, scraper, hoist, engine and boiler, derrick, drill, roasting or reduction works, stamp, roller or other mill, concentrator, conveyor, elevator, or other machinery used in or about a mine in digging, hoisting, conveying, washing, or blocking out mineral contents, or reducing the mineral contents to a commercial value, while the mill or machine is used in connection with the operation of the mine, and is not a fixture and included in the term “mine” as defined in this section;

(3) “mine” or “mining claim” means a block or parcel of mining ground, consisting of a part of a mining location, a mining location, or two or more contiguous mining locations, or an oil, gas, or other well or claim, possessed and held under one ownership, or mined under one management and worked through a common shaft, tunnel, incline, pit, well, or other opening, or over one tram; and all valuable mineral deposits, including coal, oil, gas, or other fluid, and all lodes, veins, or rock in place containing minerals; and all shafts, tunnels, stopes, ways, and other openings, roads, appliances, machinery, timbering, and structure below the surface of the ground; and all structures, buildings, mills, and machines on the surface of the ground and affixed to the ground and used in the working, mining, and development; and all ditches, water rights, pipelines, roads, trams, flumes, and other appurtenances;

(4) “mineral” includes coal, oil, gas, and inorganic substances subject to location, appropriation, acquisition, or enjoyment under the laws of the United States or the state.

(b) When the phrase “different classes or kinds of property subject to lien” is used, it refers to mines as defined in this section as one class; mills and machines as another class; and the dump or mass as a third class.