TY - RPRT TI - Composition, age, and petrogenesis of Late Cretaceous intrusive rocks in the central Big Belt Mountains, Broadwater and Meagher counties, Montana AU - E. A. Du Bray AU - L.W. Snee PY - 2002 DO - 10.3133/pp1657 UR - https://pubs.usgs.gov/publication/pp1657 ID - pp1657 ER -