Halvor Tweto
Photo Date: 
12/13/2016
The Halema'uma'u Crater in the Kīlauea Caldera, Hawai'i Volcanoes National Park.
Halvor Tweto
Photo Date: 
12/13/2016
The Thurston Lava Tube, Hawai'i Volcanoes National Park.
Tyson Gillard
Photo Date: 
06/12/2008
Daytime view of Mount Blackburn (16,391 ft) and the Kennicott Glacier.
Josh Lupkin
Photo Date: 
08/04/2013
Mount Rainier (14,411 ft) from Paradise Park enroute to Camp Muir.
Josh Lupkin
Photo Date: 
08/04/2013
The Tatoosh Range with Goat Rocks and Mount Adams (12,281 ft) on the horizon from Paradise Park's Skyline Trail.
Louis O
Photo Date: 
12/08/2016
View from the Hannegan Pass Trail.
Tommy Norwood
Photo Date: 
08/06/2014
Sunset on Mount Baker from a base camp on Coleman Glacier.
Shaun Hunter
Photo Date: 
11/29/2015
There are about two dozen lava tunnels suitable for entering in the Lava Beds National Monument.
Tyson Gillard
Photo Date: 
09/11/2012
An impressive view of Mount Hood from the McNeil Point Trail.
Bryce Jenks
Photo Date: 
08/08/2015
The Pacific Crest Trail beneath Mount Adams (12,281 ft).
Bryce Jenks
Photo Date: 
08/08/2015
Mountain stream (High Camp) with Mount Adams (12,281 ft).
Josh Lupkin
Photo Date: 
07/07/2012
Early sunrise over Broken Top (9,177 ft).
Josh Lupkin
Photo Date: 
07/07/2012
View to the south over Mount Bachelor (9,068 ft).
Josh Lupkin
Photo Date: 
07/07/2012
South Sister Hike.
Tyson Gillard
Photo Date: 
08/21/2013
Mount Jefferson (10,495 ft) from Jefferson Ridge.
Tyson Gillard
Photo Date: 
06/10/2013
View of Wizard Island from the Watchman Overlook at Crater Lake National Park.
Tyson Gillard
Photo Date: 
07/23/2013
Ash pinnacles viewed from the Godfrey Glen Trail in Crater Lake National Park.
Josh Lupkin
Photo Date: 
08/25/2012
View of South Sister (10,358 ft) and Green Lakes.
Josh Lupkin
Photo Date: 
08/25/2012
View looking up toward Broken Top's summit (9,177 ft).
Outdoor Project
Photo Date: 
05/18/2015
This is Mount St. Helens during the eruption on May 18, 1980. Note the violence of the eruption in contrast with the quiet countryside. Mount Adams can be seen in the background to the right. Photo is courtesy of the United States Geological Survey.
Andrew Stohner
Photo Date: 
11/23/2013
Outdoor Project Contributor Josh Lupkin takes in a beautiful sight: looking into the crater of Mount St. Helens (8,364 ft) from Norway Pass.
Tyson Gillard
Photo Date: 
08/06/2012
Steam rising from the Mount St. Helens caldera and the ever-growing central dome.
Aron Bosworth
Photo Date: 
08/17/2016
Lassen Peak's northeast face illuminated under a moonlit winter night.
Aron Bosworth
Photo Date: 
08/17/2016
Mount Shasta (14,179 ft) and Chaos Crag (foreground) viewed from Lassen Peak.
Patrick Mueller
Photo Date: 
08/21/2015
Bumpass Hell has Lassen's largest concentration of active hydrothermal features.
Forrest Setnor
Photo Date: 
04/17/2016
Gorgeous Mount Shasta and wonderful mountain lupine from Yellow Butte.
Jessica Beauchemin
Photo Date: 
05/22/2016
There's a wind screen at this overlook so that so you can enjoy this view of the Haleakalā Crater from behind a plexiglas barrier.
Daniel Sherman
Photo Date: 
05/28/2015
There are many vistas and plateaus along the Sliding Sands Trail in Haleakalaā National Park.
Tyson Gillard
Photo Date: 
05/04/2013
Volcano Types Diagram.
Tyson Gillard
Photo Date: 
05/04/2013
Cascade Subduction Zone Diagram.