TY - RPRT TI - Lithologic logs of observation wells and test holes drilled in 1987 in valley fill along the north flank of the Little Rocky Mountains, Fort Belknap Indian Reservation, north-central Montana AU - D.W. Briar AU - P.K. Christensen PY - 1993 DO - 10.3133/wri924163 UR - https://pubs.usgs.gov/publication/wri924163 ID - wri924163 ER -