TY - RPRT TI - Structure and structure contour maps of the Choteau 1°x2° quadrangle Lewis and Clark, Teton, Powell, Missoula, Lake, Flathead, and Cascade counties, Montana AU - Melville Rhodes Mudge AU - Robert L. Earhart PY - 1979 DO - 10.3133/ofr79863 UR - https://pubs.usgs.gov/publication/ofr79863 ID - ofr79863 ER -