English Twin Buttes (California) Cited by user Citation bot on 04 Apr 2023 The Twin Buttes are two volcanic cinder cones located in the Cascade Mountain Range in Shasta County, California.
English Geology of the Lassen volcanic area Cited by user Jo-Jo Eumerus on 04 Feb 2022 The geology of the Lassen volcanic area presents a record of sedimentation and volcanic activity in the area in and around Lassen Volcanic National Park in Northern…