Oregon Outback
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Oregon Outback is an unofficial term generally used to reference the high desert
Basin and Range Basin and range topography is characterized by alternating parallel mountain ranges and valleys. It is a result of crustal extension due to mantle upwelling, gravitational collapse, crustal thickening, or relaxation of confining stresses. The e ...
country of the central southern portion of the U.S. state of Oregon and covers most of Lake County, Klamath County,
Malheur County Malheur County () is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 31,571. Its county seat is Vale, and its largest city is Ontario. The county was named after the Malheur River, which runs thr ...
, and Harney CountyOregon Scenic Byways - Outback Scenic Byway


Climate

The region is arid with an average of about ten inches of annual rainfall, though some mountain areas may receive as much as thirty inches, mostly in the form of winter snow and summer thunderstorms. Winters are cold and windy with periodic snowfalls; spring brings warm days and cold nights with snow possible into late April. Summer is warm with cool nights and occasional thunderstorms, with fall bringing crisp weather that can be interrupted by snow as soon as late October.


Topography

The region is a high desert plateau averaging roughly in elevation, periodically broken by sometimes massive fault-block mountains. Notable fault blocks in the region are
Abert Rim Abert Rim in Lake County, Oregon is one of the highest fault scarps in the United States. It rises above the valley floor, finishing with an sheer-sided basalt cap. It was formed during the Miocene epoch. At that time basaltic flood lavas cove ...
,
Winter Ridge ''Winter Ridge'' is a 2018 British psychological thriller drama film directed by Dom Lenoir and starring Matt Hookings, Olwen Catherine Kelly, Michael McKell, Hannah Waddingham, Justin McDonald and Alan Ford. It was written by Ross Owen Willia ...
, Diablo Rim, Fish Creek Rim,
Hart Mountain Hart Mountain is a fault-block mountain, in Lake County, Oregon, U.S. It lies about to the east of Lakeview. It is sometimes confused with a mountain range, but is more properly described as a mountain. The two highest peaks are Warner Peak a ...
, and Poker Jim Ridge. Large lakes abound throughout the region as the streams of the
Great Basin The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California ...
have no outlet to the sea and empty themselves on the basin floor. The
Warner Lakes The Warner Lakes are a chain of shallow lakes and marshes in the Warner Valley of eastern Lake County, Oregon, United States. The lakes extend the length of the valley, covering approximately . The lakes are named in honor of Captain William H ...
are the largest cluster of these shallow basin lakes. The lakes contain fish, notably
crappie Crappies () are two species of North American freshwater fish of the genus ''Pomoxis'' in the family Centrarchidae (sunfishes). Both species of crappies are popular game fish among recreational anglers. Etymology The genus name ''Pomoxis'' ...
in the Warner Lakes, and host numerous bird species.


Fauna

Mule Deer are one of the most common large mammals encountered in the Outback. Pronghorn are also a common species; in fact, the herd protected on the
Hart Mountain National Antelope Refuge Hart Mountain National Antelope Refuge is a National Wildlife Refuge on Hart Mountain in southeastern Oregon, which protects more than and more than 300 species of wildlife, including pronghorn, bighorn sheep, mule deer, sage grouse, and Great ...
is one of the largest in North America. Another unique large mammal is the Kiger Mustang; these feral horses are direct descendants of Spanish mustangs that escaped from the
conquistador Conquistadors (, ) or conquistadores (, ; meaning 'conquerors') were the explorer-soldiers of the Spanish and Portuguese Empires of the 15th and 16th centuries. During the Age of Discovery, conquistadors sailed beyond Europe to the Americas, O ...
s long ago in the southwest.


Ownership

Much of the area is publicly owned, primarily under
Bureau of Land Management The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's la ...
(BLM) control. Some large areas are specially designated for protection, such as the
Steens Mountain Wilderness The Steens Mountain Wilderness is a wilderness area surrounding a portion of Steens Mountain of southeastern Oregon in the United States. The reserve falls within the Steens Mountain Cooperative Management and Protection Area (CMPA). Both the ...
complex,
Hart Mountain National Antelope Refuge Hart Mountain National Antelope Refuge is a National Wildlife Refuge on Hart Mountain in southeastern Oregon, which protects more than and more than 300 species of wildlife, including pronghorn, bighorn sheep, mule deer, sage grouse, and Great ...
and the Malheur National Wildlife Refuge. Though access to most areas is readily available because the land is publicly owned, use is relatively light because of the extreme isolation of the land. A recent controversy involves the grazing of domestic livestock on public lands. A century-old practice, public grazing in many areas has recently led environmentalists to decry the practice as harmful to the fragile and unique
desert A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on ...
ecosystems. In fact, this controversy led to the creation of the
Steens Mountain Wilderness The Steens Mountain Wilderness is a wilderness area surrounding a portion of Steens Mountain of southeastern Oregon in the United States. The reserve falls within the Steens Mountain Cooperative Management and Protection Area (CMPA). Both the ...
, which includes some of the only designated livestock-free zones in the nation.


Counties


Cities and towns


See also

* Northern Great Basin Experimental Range * Southern Oregon * Central Oregon *
Southeastern Oregon Southeastern Oregon is a geographical term for the area along the borders of the U.S. state of Oregon with Idaho, California, and Nevada. It includes the populous areas of Burns, Klamath Falls and Lakeview. The region is also known by its nick ...
* Eastern Oregon


References

{{coord , 42.7 , -119.6 , type:landmark_region:US-OR_dim:250000 , display=title Regions of Oregon