TY - RPRT TI - Geologic field trip guide to Mount Mazama and Crater Lake Caldera, Oregon AU - Charles R. Bacon AU - Heather M. Wright PY - 2017 DO - 10.3133/sir20175022j1 UR - https://pubs.usgs.gov/publication/sir20175022J1 ID - sir20175022J1 ER -