 | The Siletz River Volcanics, located in the Oregon Coast Range, United States, are a sequence of basaltic pillow lavas that make up part of Siletzia. The... 7 KB (419 words) - 06:05, 22 November 2023 |
city in Oregon. Siletz River, a river in Oregon. Siletz River Volcanics, a formation of Eocene volcanic deposits on the Oregon coast. Siletz terrane: Siletzia... 776 bytes (136 words) - 21:48, 3 May 2019 |
 | Yellowstone hotspot (redirect from Snake River Plain-Yellowstone Hotspot) volcanics, Olympic Peninsula/ southern Vancouver Island, 50–60 Ma. Siletz River Volcanics, Oregon Coast Range, a sequence of basaltic pillow lavas. Carmacks... 40 KB (4,301 words) - 01:20, 30 March 2024 |
 | Oregon Coast Range (section Rivers) southern portion of the current range. These Roseburg volcanics were followed by the Siletz River Volcanics in the northern portions of the range, and lastly... 16 KB (1,771 words) - 12:02, 22 December 2023 |
 | Siletzia (redirect from Siletz terrane) Willapa Hills volcanics of Washington, and the Siletz River Volcanics and Roseburg Formation of Oregon. (See map. The Grays River Volcanics of Washington... 92 KB (10,227 words) - 16:32, 27 November 2023 |
 | 000 years ago. The oldest rocks beneath the Willamette Valley are the Siletz River Volcanics. About 35 million years ago, these rocks were subducted by the Farallon... 105 KB (10,822 words) - 07:49, 29 April 2024 |
 | Lava Butte (category Newberry National Volcanic Monument) 1990, Newberry National Volcanic Monument was created encompassing Newberry Crater, Lava Cast Forest Geological Area, Lava River Cave, and the Lava Butte... 10 KB (1,038 words) - 22:42, 2 April 2023 |
Fossilworks.org Yamhill Formation at USGS Siletz River Volcanics at Fossilworks.org Siletz River Volcanics at USGS Cape Sebastian Sandstone at Fossilworks... 31 KB (617 words) - 04:32, 7 March 2022 |
 | consists of several discontinuous tracts north and south of the Siletz River where it enters Siletz Bay south of Lincoln City. Previously closed to public use... 5 KB (378 words) - 21:03, 14 June 2023 |
 | Jordan Craters (category Volcanic fields of Oregon) The flows of Jordan Craters volcanic field are the youngest of a series of large Quaternary basalt fields in the eastern part of the U.S. state of Oregon... 3 KB (275 words) - 15:18, 5 January 2024 |
 | heavily glaciated—such as Mount Washington and Mount Thielsen—display eroded volcanic necks, Three Fingered Jack's present summit is a comparatively narrow ridge... 30 KB (3,228 words) - 18:39, 22 April 2024 |
 | Oregon, United States. It is also part of the Boring Lava Field, a group of volcanic vents and lava flows throughout Oregon and Washington state. The volcano... 47 KB (5,089 words) - 23:13, 22 April 2024 |
 | Larch Mountain (Multnomah County, Oregon) (category Columbia River Gorge) spring months. The road leading to Larch Mountain from the Historic Columbia River Highway is 14 miles long, which closed at milepost 10 from Nov. through... 13 KB (1,256 words) - 10:47, 31 March 2024 |
Hole-in-the-Ground is a large maar (volcanic explosion crater) in the Fort Rock–Christmas Lake Valley basin of Lake County, central Oregon, northeast of... 4 KB (344 words) - 14:39, 3 April 2023 |
 | (corresponding to the Siletz River volcanics in Oregon and Metchosin Formation on Vancouver Island), a vast outpouring of volcanic basalt from the Eocene... 178 KB (20,728 words) - 21:02, 7 November 2023 |
 | Ocean off the coast of northern Vancouver Island, British Columbia Siletz River Volcanics – A sequence of basaltic pillow lavas that make up part of Siletzia... 226 KB (32,647 words) - 13:07, 24 February 2024 |
 | It is part of the Boring Lava Field, which includes more than 80 small volcanic edifices and lava flows in the Portland–Vancouver metropolitan area. The... 14 KB (1,429 words) - 03:32, 3 January 2024 |
 | led to the Rogue River Wars of 1855 and 1856. After the wars, the remaining Latgawa were forced hundreds of miles north to the Siletz Reservation on the... 39 KB (3,724 words) - 23:34, 21 November 2023 |
 | Central Oregon Coast Range (section Rivers) rock of the Central Coast Range are the igneous rocks from the Siletz River Volcanics of the Paleocene age. It is estimated that this rock formation is... 16 KB (1,500 words) - 06:04, 22 November 2023 |
 | (Entemnotrochus) baldwini, P. (E.) schencki & P. (E.) siletzensis, Siletz River Volcanics, Oregon Fischer (1885). Man. Conch.: 850 G.W. Tryon (1890), Manual... 7 KB (551 words) - 20:05, 9 January 2024 |
 | the endangered Lost River sucker and shortnose sucker. Pelican Butte is part of the Quaternary Mount McLoughlin Reach, a volcanic vent zone that runs... 23 KB (2,647 words) - 03:03, 20 April 2024 |
 | Kienle, pp. 190–191. Hoblitt, R. P.; Miller C. D.; Scott, W. E. (1987). "Volcanic Hazards with Regard to Siting Nuclear-Power Plants in the Pacific Northwest"... 9 KB (925 words) - 02:26, 11 April 2024 |
 | rivers.gov. National Wild and Scenic Rivers System. Retrieved 2023-01-05. Confederated Tribes of Siletz (2007). "Siletz Talking Dictionary". Swarthmore College... 95 KB (10,791 words) - 18:19, 16 March 2024 |
Ridge Powder River Volcanics Powder River Volcanics Saddle Butte Squaw Ridge Lava Field Steens Mountain Strawberry Mountain Strawberry Volcanics Tower Mountain... 4 KB (390 words) - 21:15, 20 April 2024 |
 | time than surrounding volcanic centers, Olallie has been excavated by glacial erosion on its northeastern flank. Its central volcanic plug has also been... 31 KB (3,613 words) - 08:08, 26 April 2023 |
Ridge Powder River Volcanics Powder River Volcanics Saddle Butte Squaw Ridge Lava Field Steens Mountain Strawberry Mountain Strawberry Volcanics Tower Mountain... 3 KB (231 words) - 22:54, 2 April 2023 |
 | major volcanic centers. There are roughly 190 known domes in the state of Oregon, with 40 located near Mount Jefferson, 22 near the Tumalo volcanic highland... 22 KB (2,371 words) - 13:32, 28 January 2024 |
 | Devils Garden Volcanic Field is a volcanic field located south east of Newberry Caldera in Oregon. The lava field consists of several flows of pahoehoe... 3 KB (246 words) - 02:58, 15 November 2023 |
 | Ridge Powder River Volcanics Powder River Volcanics Saddle Butte Squaw Ridge Lava Field Steens Mountain Strawberry Mountain Strawberry Volcanics Tower Mountain... 3 KB (142 words) - 00:27, 3 January 2024 |
 | can see Broken Top, Mt. Bachelor, and the Three Sisters Complex. Tumalo Volcanic Center "Tumalo Mt". NGS Data Sheet. National Geodetic Survey, National... 4 KB (253 words) - 12:04, 6 April 2023 |