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Succor Creek, Malheur Co., Oregon, USA

This page kindly sponsored by Jolene Buttolph
Latitude & Longitude (WGS84): 43° 11' 54'' North , 117° 29' 50'' West
Latitude & Longitude (decimal): 43.19833,-117.49722
Köppen climate type:BSk : Cold semi-arid (steppe) climate

DOGAMI MLR 23-0072
Commodities (Major) - Gemstone
Development Status: Producer

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

7 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

5.333 - 23.03 Ma

ID: 2874641
Tuffaceous sedimentary rocks, tuffs, pumicites, and silicic flows

Age: Miocene (5.333 - 23.03 Ma)

Stratigraphic Name: Mascall Formation; Succor Creek Formation; Drip Spring Formation; Trout Creek Formation; Picture Gorge Basalt

Description: Moderately well indurated lacustrine and fluvial (flood-plain) deposits of tuff, pumicite, palagonite tuff, and lesser siltstone, arkosic sandstone, and pebble and cobble conglomerate. Locally contains some lignite beds. Former glass in silicic vitroclastic debris commonly crystallized and altered to secondary silica minerals, alkali feldspar, zeolites, and clay minerals. Contains some welded and nonwelded ash-flow tuffs, and minor rhyolite flows. Widespread and abundant vertebrate fossils and minor plant fossils indicate that most of unit is of middle Miocene (Barstovian) age; parts of unit between Goose Lake and Warner Valley may include rocks of early Miocene age. Locally interlayered with and locally overlies basalt and andesite flows of unit Tmb. Overlies and locally interfingers with Picture Gorge Basalt (Thayer and Brown, 1966) and with Miocene basalt south of Prineville. Includes Mascall Formation of Merriam (1901), Sucker (Succor) Creek Formation of Corcoran and others (1962) and Kittleman and others (1967), Drip Spring Formation of Kittleman and others (1965, 1967), Trout Creek Formation of Smith (1926), and "rocks of Miocene age" of Malde and Powers (1962) in the southern Owyhee Upland province. In southeast Oregon, some of these rocks represent caldera and moat-fill deposits

Lithology: Major:{rhyolite}, Minor:{siltstone,arkose,conglomerate,lignite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

5.333 - 23.03 Ma

ID: 1552853
Lake Owyhee Volcanic Field; Leslie Gulch Ashflow Tuff

Age: Miocene (5.333 - 23.03 Ma)

Description: Leslie Gulch Ash-flow Tuff; 360m thick; volcaniclastic rocks; rhyolite; tuff; massive; mixed grains

Lithology: Major:: {ash-flow tuff, pale to grayish yellow, light green, greenish brown; sanidine quartz phenocrysts; lithic clasts}; Major:: {airfall tuff, light green, pale yellow; sanidine quartz phenocrysts} Minor:: {vitrophyre, black; sanidine plagioclase quartz pyroxene phenocrysts}; Minor:: {lapilli tuff}; Minor:: {vent breccia}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Altaner, S.P. and Grim, R.E.(1990): Mineralogy, Chemistry and Diagenesis Of Tuffs in The Sucker Creek Formation (Miocene) Eastern Oregon: Clays and Clay Minerals. 38 (6), 561-572
Armbruster, T. and Gunter, M.E (1991): Stepwise dehydration of Heulandite -Clinoptilolite from Succor Creek, Oregon, U.S.A: A single-crystal x-ray study at 100K. American Mineralogist. 76, 1872-1883

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