UNITED STATES AND CANADA OBSIDIAN SOURCE CATALOG

Newberry Caldera from the summit of Paulina Peak

The summit caldera of Newberry Volcano, Newberry National Volcanic Monument, Oregon.
The 1,350 year-old Big Obsidian Flow is located in the lower right quadrant.

Oregon Obsidian Sources

SOURCE NAME: Most commonly-used name for the geochemical source
OTHER NAMES: Alternate names or names of source outcrops belonging to same geochemical source group
Click on the PDF link for an Adobe Acrobat document with additional source information.

OREGON SOURCE MAP | U.S. SOURCE MAPS INDEX

SOURCE NAME (CHEMICAL GROUP) OTHER NAME(S) PDF
Alkali Valley Vitrophyre --
--
Bald Butte --
--
Barren Valley --
--
Bear Creek --
PDF
Beatys Butte Beaty's Butte
Beatty's Butte
PDF
Beatys Butte Variety 2 Beatys Butte B
--
Beaver Mountain Dooley Mountain
Indian Creek 2
--
Big Bend --
--
Big Obsidian Flow Geohemical Group
  • Big Obsidian Flow (post-Mazama individual flow)
  • Buried Obsidian Flow (pre-Mazama individual flow)

Newberry Caldera
PDF
Big Stick --
PDF
Blowfly Spring --
--
Brooks Canyon --
--
Browder Ridge Vitrophyre --
--
Buck Spring Delintment Lake
Harney Lake
Horsehead Mountain
Jack Creek
Jackass Canyon
Juniper Spring
Nicoll Creek
Orejana Canyon
Palamino Buttes
Plumber Spring
Rattlesnake Formation
Rough Creek
Sawmill Creek
Venator Canyon
PDF
Buena Vista Overlook Buena Vista
PDF
Bull Lake --
--
Buried Obsidian Flow - SEE Big Obsidian Flow Geochemical Group South Obsidian Flow
--
Burns Burns Butte
Hines
Radar Hill
Skull Creek
PDF
Burnt Mountain Burnt Mountain #2
--
Butte Creek Unknown 6
PDF
Camp Creek --
--
Carlon (Bald Butte) Bald Butte
PDF
Carver Flow/Unknown B Carver
Demaris Lake
Ludwig Quarry
Squaw Creek
Unknown B
PDF
Chickahominy --
PDF
China Hat --
--
China Lake --
--
Clackamas River Mill Creek Buttes
Unknown C
PDF
Coglan Buttes --
PDF
Cold Point Badger Creek Wilderness
PDF
Cougar Mountain --
PDF
Coyote Wells Buckboard Reservoir
Mesa Reservoir
Riley Mimic
--
Coyote Wells East --
--
Crazy Creek --
--
Crooked Creek --
--
Curtis Creek Group 2
Unknown 2 (at Indian Grade Spring Site)
--
Dant Deschutes River Perlite and Obsidian
PDF
Deep Canyon Vitrophre --
--
Deer Creek Burn Butte
PDF
Delintment Lake Holmes Canyon
Orejana Canyon B
Plumber Spring
Rattlesnake Formation
Wright's Point
--
Devil Point Devil Ridge
Devils Peak
Grizzly Creek
PDF
Devil's Hill Dome Chain South Sister Dome Chain
--
Devils Overlook --
--
Diatomite Reservoir Skull Creek
--
Dog Hill --
--
Double H/Whitehorse Ankle Creek
Bretz Mine
Whitehorse
Whitehorse 2
Whitehorse Ranch
NEVADA
Double O --
PDF
Downey Canyon --
PDF
Drews Creek/Butcher Flat --
PDF
Duncan Creek --
--
East Butte --
--
East Lake Fissure --
--
Ebell Creek Baker
Dooley Mountain
PDF
Eldorado --
--
Glass Buttes 1 Glass Buttes
Glass Buttes A
PDF
Glass Buttes 2 Glass Buttes B
PDF
Glass Buttes 3/6 Glass Buttes C
Glass Buttes 3
Glass Buttes 6
Glass Buttes E
Glass Buttes F
Juniper Spring, Variety 1
Little Glass Butte
PDF
Glass Buttes 4 Glass Buttes D
Sand Flat
PDF
Glass Buttes 5 Glass Buttes E
Potato Hills
Wise Flat
PDF
Glass Buttes 7 Juniper Spring, Variety 2
Midnight Ridge
PDF
Glass Buttes 8 --
PDF
Glass Buttes 9 (Round Top Butte) Round Top Butte
PDF
Grassy Mountain (Oregon and Idaho) --
--
Gregory Creek Jonesboro
Sugarloaf Butte
PDF
Guyer Creek --
--
Hager Mountain Auger Creek
Frog Mountain
--
Hart Mountain Deer Creek
Hart Mountain (Deer Creek)
--
Hawks Valley Hawk's Valley
Hawksy Walksy
PDF
Hoona Ridge Fort Rock
Squaw Butte
Squaw Ridge [Renamed as Hoona Ridge by the Forest Service in 2005]
--
Horse Mountain Horse Mountain Variety 1
Horse Mountain A
Poverty Flat
Poverty Basin
PDF
Horse Mountain Variety 2 Horse Mountain B
PDF
Hurley Spring Hurley Creek? (unverified)
--
Indian Creek Baker
Dooley Mountain
Wallowa
PDF
Indian Creek Buttes Variety 1 Duck Creek
Indian Creek Buttes
Indian Creek Buttes A
Indian Creek Buttes Variety A
Petroglyphs
PDF
Indian Creek Buttes Variety 2 Duck Creek
Indian Creek Buttes
Indian Creek Buttes B
Indian Creek Buttes Variety B
PDF
Inman Creek A Bills Creek
Eagle Creek
Fern Ridge
Inman
Long Tom
Petite Creek
Pleasant Hill
Salt Creek
Staley Creek
Siuslaw River
Willamette River Gravels
PDF
Inman Creek B Bills Creek
Eagle Creek
Fern Ridge
Inman
Long Tom
Mt. David Douglas
Petite Creek
Pleasant Hill
Siuslaw River
Staley Creek
Unknown D
Willamette River Gravels
PDF
John Day Formation Ash-Flows --
--
Jordan Creek --
--
Juniper Mountain Squaw Mountain
--
Kelsay Creek --
--
Klamath Marsh 1 --
--
Klamath Marsh 2 --
--
Lemiti Creek --
PDF
Little Garden --
--
Llao Rock --
--
Logan Valley --
--
Lowell Vitrophyre Upper Winberry Creek
Winberry Creek
--
Malheur Gap --
--
Massacre Lake/Guano Valley (See Nevada) Borax Works C
Guano Slough
Guano Valley
NEVADA
McComb Butte --
PDF
McKay Butte --
PDF
Mud Ridge Skull Creek
PDF
Mutton Mountains --
--
New Era --
PDF
Newberry Volcano Central Pumice Cone Flow
East Lake Flows
Game Hut Flow
Interlake Flow (Inter Lake, North Flow, T Flow)
Little Obsidian Flow
Newberry Caldera
Newberry Crater
PDF
Newell Creek --
--
Obsidian Cliffs McKenzie River Gravels
North Sister
Obsidian Ridge
Three Sisters
Willamette River Gravels
PDF

PERMIT

Owyhee (Oregon and Idaho) Grassy Mountain A
--
Parsnip Creek --
PDF
Paulina Peak --
--
Peyerl (Pasture Rock) Dry Creek
Pasture Rock
Payerl
Peyerl Tuff
West of Fort Rock
PDF
Poison Creek House Creek
--
Quartz Mountain Dry Butte
Rogers Butte
PDF
Quartz Mountain B --
--
Rhododendron Ridge Rho Ridge
--
Riley East of Squaw Butte
Glass Mountain
Reily
Riley Quarry
Silver Creek
PDF
Rimrock Spring Skull Creek
Wright's Point
PDF
Rock Mesa South Sister
--
School Creek Vitrophyre --
--
Silver Lake/Sycan Marsh Carlon Ranch
Long Creek
Silver Lake
Silver Lake/Sycan Marsh North
Silver Lake/Sycan Marsh South
Silver Lake/Sycan Marsh (South Dome)
Silver Lake/Sycan Marsh (Nouth Dome)
Sycan Marsh
Yamsay Mountain
PDF
Skull Springs Skull Creek
Skull Spring
--
Sourdough Mountain --
PDF
South Creek --
--
Spodue Mountain Black Hills
Sprague River
West Horton
PDF
Surveyor Spring Rock Creek (CA)
Surveyor Springs
Twelvemile Canyon
PDF
Sutton Mountain --
--
Tank Creek --
PDF
Tough Butte Whiskey Hills
PDF
Tucker Hill --
PDF
Tule Spring Group 1
Unknown 1 (at Indian Grade Spring Site)
--
Tumalo Creek North Fork Tumalo Creek
Tam McArthur
Tam McArthur Rim
PDF
Unknown B Carver Flow/Unknown B
--
Upper Gap Lake --
--
Van Gulch --
--
Variety 5 --
PDF
Venator Horseshoe Bend
Shumway Ridge
--
Wagontire Egli Ridge
Egli Waterhole
Horseshoe Bar
Variety 17
Wagon Tire
PDF
West McKay (Unknown X) McKay Butte West (Unknown X)
Unknown X
PDF
Whitewater Ridge Bear Valley
Foster Spring
John Day
Juniper Spring, Variety 1
Juniper Spring, Variety 2
Little Bear Creek
Parish Cabin Campground
Seneca
Whitewater Spring
Whitewater Spring 2
PDF
Wildcat Basin --
--
Wildcat Creek --
--
Winter Ridge White Rock
--
Witham Creek School Creek
Withram Creek
PDF
Wolf Creek Drewsey
Glass Mountain
Horseshoe Bend
Whitewater Spring 1
PDF
Yreka Butte --
PDF

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Last Updated: 01/01/2025