Geographer David: Upper Pine Creek mudflow, Loowit Trail, Mt St Helens, WA
Geographer David: Upper Ape Canyon, Mt St Helens, WA
Geographer David: Truman Trail, Mt St Helens, WA
Geographer David: Upper Toutle River drainage from upper Windy Ridge, Mt St Helens, WA
Geographer David: Plains of Abraham, Mt St Helens, WA
Geographer David: Goat Marsh, Mt St Helens, WA
Geographer David: Mount Bachelor, Oregon
Geographer David: South Sister, Oregon
Geographer David: Broken Top, Oregon
Geographer David: Mount Bachelor, Oregon
Geographer David: Diamond Peak, Oregon
Geographer David: Mount Yoran, Oregon Cascades
Geographer David: Gerdine Butte and Charlton Lake, Deschutes Co., Oregon
Geographer David: marmot, Ape Canyon, Mt St Helens, WA
Geographer David: Upper Toutle River drainage, Mt St Helens, WA panorama
Geographer David: Smith Creek, Mt St Helens
Geographer David: Spirit Lake, Mt St Helens panorama
Geographer David: Upper Smith Creek panorama, Mt St Helens, WA
Geographer David: Upper Smith Creek, Mt St Helens, WA
Geographer David: Smith Creek lahar, Mt St Helens
Geographer David: Smith Creek mudflow - Aug. 2006
Geographer David: Smith Creek, Mt St Helens
Geographer David: upper Sheep Canyon, Mt St Helens
Geographer David: upper Sheep Canyon, Mt St Helens
Geographer David: Loowit Trail, Mt St Helens
Geographer David: upper Sheep Canyon, Mt St Helens, WA
Geographer David: view from lava flow at Red Rock Pass, Mt St Helens, WA
Geographer David: panorama on the south side of Mt St Helens, WA
Geographer David: lava flow, Mt St Helens, WA
Geographer David: Butte Camp trail, Mt St Helens, WA