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NORTHWEST RESEARCH OBSIDIAN STUDIES LABORATORY MAP LIBRARY

Welcome to the laboratory map library. In this section, you can find and download various obsidian-related maps that we've produced here at the lab. We'll generally offer a high-resolution version and an Adobe Acrobat (PDF) version. To view the Acrobat pages, you'll need to have the free Adobe Acrobat reader installed. To download either the PDF or JPEG image, right-click on the link and choose "Save Target As" or left-click on the link and then save the displayed image to the destination of your choice.

These maps are works in progress. For the time being, the maps offered here should be considered to be somewhat preliminary and subject to change in both style and content. Those that are clearly preliminary in nature are designated as such in the map index list below. If you should spot any errors or omissions (or simply have suggestions about how we could improve the maps), we'd appreciate it if you would let us know so that we can immediately investigate and correct them.

Source locations. The sources represented on the maps are geochemical (or chemical) sources, i.e., they are sources of glass that fall into a single geochemically-determinable source group. The locations that are placed on the maps are generally points that are chosen to represent the general or central locations of the obsidian, the primary source (if one is identifiable), or the "type" location that has provided the original name for the source. There is no attempt in the state-scale maps to accurately represent both the primary and secondary geographic distribution of the obsidian (which can be considerable). Several of the obsidian sources, particularly those in Nevada, Oregon, and Idaho, are associated with extensive volcanic ashflows and nodules of glass may sometimes be found over very large geographic areas. For these sources (Browns Bench, Massacre Lake/Guano Valley, Buck Spring, and several others), we will eventually provide more detailed maps illustrating their known geographic range. Finally, a few potential sources (for which we have not been able to obtain or collect specimens for analysis) have been omitted from the maps because we have not been able to verify their existence or because we suspect that they are outcrops related to a known geochemical source.

The maps available here are all produced by Northwest Research Obsidian Studies Laboratory and may be downloaded and freely used or modified for reports, books, websites, and other projects. We ask only that you give us explicit credit for them or provide a link back to www.obsidianlab.com. Higher resolution state source maps are available upon request. Additional obsidian-related maps from other sources (such as the U. S. Geological Survey) will eventually be available in the laboratory image library which is currently under development.

Additional information about the obsidian sources shown on these maps can be found (or soon will be found) at our companion website at www.sourcecatalog.com.

Enjoy!

ALASKA

ALASKA OBSIDIAN SOURCES (PRELIMINARY)
PDF | JPEG

ARIZONA

ARIZONA OBSIDIAN SOURCES
PDF | JPEG

CALIFORNIA

CALIFORNIA OBSIDIAN SOURCES: INDEX MAP
PDF | JPEG

CALIFORNIA OBSIDIAN SOURCES: NORTHEAST (MAP 1)
PDF | JPEG

CALIFORNIA OBSIDIAN SOURCES: NORTH COAST RANGES (MAP 2)
PDF | JPEG

CALIFORNIA OBSIDIAN SOURCES: EASTSIDE (MAP 3)
PDF | JPEG

CALIFORNIA OBSIDIAN SOURCES: SOUTH (MAP 4)
PDF | JPEG

COSO VOLCANIC FIELD OBSIDIAN SOURCE VARIETIES
PDF | JPEG


CALIFORNIA: FINE-GRAINED VOLCANIC (FGV) SOURCES

CALIFORNIA FGV SOURCES: LAKE TAHOE REGION
PDF | JPEG

CALIFORNIA FGV SOURCES: NORTH
PDF | JPEG

CALIFORNIA FGV SOURCES: SOUTH
PDF | JPEG

CANADA

NO MAPS ARE CURRENTLY AVAILABLE.

COLORADO

COLORADO OBSIDIAN SOURCES
PDF | JPEG

HAWAII

HAWAII OBSIDIAN SOURCES
PDF | JPEG

IDAHO

IDAHO OBSIDIAN SOURCES (PRELIMINARY)
PDF | JPEG

IDAHO OBSIDIAN SOURCES: BROWNS BENCH
INCLUDES IDAHO, NEVADA, AND UTAH
PDF | JPEG

IDAHO OBSIDIAN SOURCES: SOUTHWEST
(OWYHEE AND BROWNS BENCH)
PDF | JPEG

MONTANA

MONTANA OBSIDIAN SOURCES
PDF | JPEG

NEVADA

NEVADA OBSIDIAN SOURCES
PDF | JPEG

NEVADA OBSIDIAN SOURCES: BROWNS BENCH
INCLUDES NEVADA, UTAH, AND IDAHO
PDF | JPEG

NEVADA OBSIDIAN SOURCES: NORTHWEST
(MASSACRE LAKE/GUANO VALLEY, BS/PP/FM, AND DOUBLE H/WHITEHORSE)
PDF | JPEG

NEVADA: FINE-GRAINED VOLCANIC (FGV) SOURCES

NEVADA FGV SOURCES
PDF | JPEG

NEW MEXICO

NEW MEXICO OBSIDIAN SOURCES
PDF | JPEG

OREGON

OREGON OBSIDIAN SOURCES (UNLABELED)
PDF | JPEG

OREGON OBSIDIAN SOURCES: INDEX MAP
PDF | JPEG

OREGON OBSIDIAN SOURCES: NORTHWEST OREGON SOURCE MAP (MAP 1)
PDF | JPEG

OREGON OBSIDIAN SOURCES: NORTHEAST OREGON SOURCE MAP (MAP 2)
PDF | JPEG

OREGON OBSIDIAN SOURCES: NEWBERRY VOLCANO REGION SOURCE MAP (MAP 3)
PDF | JPEG

OREGON OBSIDIAN SOURCES: SOUTHCENTRAL OREGON SOURCE MAP (MAP 4)
PDF | JPEG

OREGON OBSIDIAN SOURCES: SOUTHEAST OREGON SOURCE MAP (MAP 5)
PDF | JPEG

OREGON OBSIDIAN SOURCES: BUCK SPRING GEOCHEMICAL SOURCE MAP
PDF | JPEG

OREGON OBSIDIAN SOURCES: GREGORY CREEK GEOCHEMICAL SOURCE MAP
PDF | JPEG

OREGON OBSIDIAN SOURCES: OBSIDIAN CLIFFS SOURCE MAP
PDF | JPEG

OREGON OBSIDIAN SOURCES: SILVER LAKE/SYCAN MARSH GEOCHEMICAL SOURCE MAP
PDF | JPEG

OREGON OBSIDIAN SOURCES: SPODUE MOUNTAIN GEOCHEMICAL SOURCE MAP
PDF | JPEG

OREGON OBSIDIAN SOURCES: VENATOR GEOCHEMICAL SOURCE MAP
PDF | JPEG


GLASS BUTTES SOURCE COMPLEX MAP SERIES

For many years, we've been sampling, analyzing, and mapping obsidian from the Glass Buttes Source Complex and have so far identified nine different geochemical varieties. These maps provide a snapshot of our findings to date.
GLASS BUTTES SOURCE COMPLEX REGION MAP
PDF | JPEG

GLASS BUTTES SOURCE COMPLEX MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 1 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 2 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 3 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 4 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 5 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 6 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 7 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 8 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETY 9 MAP
PDF | JPEG

GLASS BUTTES GEOCHEMICAL SOURCE VARIETIES 1-9 MAPS
A flip book of all nine different geochemical varieties of obsidian at the Glass Buttes Source Complex
PDF


BEAR VALLEY-MALHEUR NATIONAL FOREST MAP SERIES

BEAR VALLEY-MALHEUR NATIONAL FOREST:
OVERALL OBSIDIAN SOURCES MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
BEAR CREEK GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
BIG BEND GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
BLOWFLY SPRING GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
CRAZY CREEK GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
CROOKED CREEK GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
LOGAN VALLEY GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
POISON CREEK GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
VAN GULCH GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WHITEWATER RIDGE (ALL VARIETIES) GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WHITEWATER RIDGE (LITTLE BEAR CREEK VARIETY) GEOCHEMICAL SOURCE MAP
(SMALL-SCALE)

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WHITEWATER RIDGE (LITTLE BEAR CREEK VARIETY) GEOCHEMICAL SOURCE MAP
(LARGE-SCALE)

JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WHITEWATER RIDGE (WHITEWATER RIDGE VARIETY) GEOCHEMICAL SOURCE MAP
(SMALL-SCALE)

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WHITEWATER RIDGE (WHITEWATER RIDGE VARIETY) GEOCHEMICAL SOURCE MAP
(LARGE-SCALE)

JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WILDCAT BASIN GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
WOLF CREEK GEOCHEMICAL SOURCE MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
MAHOGANY OBSIDIAN SOURCES MAP

PDF | JPEG

BEAR VALLEY-MALHEUR NATIONAL FOREST:
PORPHYRITIC OBSIDIAN SOURCES MAP

PDF | JPEG

NEWBERRY VOLCANO MAP SERIES

NEWBERRY VOLCANO:
CALDERA AREA OBSIDIAN SOURCES

PDF | JPEG

NEWBERRY VOLCANO:
CALDERA AND MCKAY BUTTE AREA OBSIDIAN SOURCES

PDF | JPEG

NEWBERRY VOLCANO:
OBSIDIAN SOURCES WITH GEOLOGIC BASE MAP

PDF | JPEG


OREGON: FINE-GRAINED VOLCANIC (FGV) SOURCES

OREGON FGV SOURCES
PDF | JPEG

SOUTH DAKOTA

SOUTH DAKOTA OBSIDIAN SOURCES
PDF | JPEG

TEXAS

NO MAPS ARE CURRENTLY AVAILABLE.

UTAH

UTAH OBSIDIAN SOURCES
PDF | JPEG

UTAH OBSIDIAN SOURCES: BROWNS BENCH
INCLUDES UTAH, NEVADA, AND IDAHO
PDF | JPEG

UTAH: FINE-GRAINED VOLCANIC (FGV) SOURCES

UTAH FGV SOURCES
PDF | JPEG

WASHINGTON

WASHINGTON OBSIDIAN SOURCES
PDF | JPEG

WYOMING

WYOMING OBSIDIAN SOURCES
PDF | JPEG

OTHER MAPS

NO MAPS ARE CURRENTLY AVAILABLE.

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Last Updated: 01/01/2014
Northwest Research Obsidian Studies Laboratory