Mount Bachelor and Sparks Lake
Foto 1: Bachelor81_aerial_mount_bachelor_1981.jpg
Aerial view, Mount Bachelor.
USGS Photograph taken in 1981 by W.E. Scott.
Foto 2: Bachelor85_aerial_mount_bachelor_sparks_lake_1985.jpg
Aerial view, Mount Bachelor and Sparks Lake.
USGS Photograph taken in 1985 by Lyn Topinka.
Foto 3: Belknap84_belknap_shield_volcano_10-01-84.jpg
Belknap Shield Volcano, Oregon.
USGS Photograph taken on October 1, 1984, by Lyn Topinka.
Foto 4: MaunaLoa79_mauna_loa_shield_volcano_05-79.jpg
Mauna Loa shield volcano, Hawaii, as seen from Mauna Kea summit.
USGS Photo taken May 1979, by Tom Casadevall.