Any mineral interest, if unused for a period of twenty years, may be extinguished by the surface owner as set forth in RCW 78.22.050 and 78.22.060.
RCW 78.22.010
Extinguishment of unused mineral rights authorized.
1984 c 252 s 1.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.