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Oregon Outback is an unofficial term generally used to reference the high desert Basin and Range country of the central southern portion of the U.S. state of Oregon and covers most of Lake County, Klamath County, Malheur County, and Harney County [1]
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.
The region is a high desert plateau averaging roughly 4,000 feet (1,200 m) in elevation, periodically broken by sometimes massive fault-block mountains.
Notable fault blocks in the region are Abert Rim, Winter Ridge, Diablo Rim, Fish Creek Rim, Hart Mountain, and Poker Jim Ridge. Large lakes abound throughout the region as the streams of the Great Basin have no outlet to the sea and empty themselves on the basin floor. The Warner Lakes are the largest cluster of these shallow basin lakes. The lakes contain fish, notably crappie in the Warner Lakes, and host numerous bird species.
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 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 conquistadors long ago in the southwest.
Much of the area is publicly owned, primarily under Bureau of Land Management (BLM) control. Some large areas are specially designated for protection, such as the Steens Mountain Wilderness complex, Hart Mountain National Antelope Refuge 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 ecosystems. In fact, this controversy led to the creation of the Steens Mountain Wilderness, which includes some of the only designated livestock-free zones in the nation.
| County Name | Population (2006) [2] | Area |
|---|---|---|
| Harney | 7,670 | 26,486 km² (10,226 mi²) |
| Klamath | 65,455 | 15,892 km² (6,136 mi²) |
| Lake | 7,540 | 21,648 km² (8,358 mi²) |
| Malheur | 31,725 | 25,719 km² (9,930 mi²) |
California is a U.S. state on the western coast of North America. Covering an area of 163,696 sq mi (423,970 km2), California is among the most geographically diverse states. The Sierra Nevada, the fertile farmlands of the Central Valley, and the arid Mojave Desert of the south are some of the major geographic features of this U.S. state. It is home to some of the world's most exceptional trees: the tallest, most massive, and oldest. It is also home to both the highest and lowest points in the 48 contiguous states. The state is generally divided into Northern and Southern California, although the boundary between the two is not well defined. San Francisco is decidedly a Northern California city and Los Angeles likewise a Southern California one, but areas in between do not often share their confidence in geographic identity. The US Geological Survey defines the geographic center of the state at a point near North Fork, California.
Eastern Oregon is a region of the U.S. state of Oregon. It is not an officially recognized geographic entity; thus, the boundaries of the region vary according to context. It is sometimes understood to include only the eight easternmost counties in the state; in other contexts, it includes the entire area east of the Cascade Range. Cities in the basic eight-county definition include Baker City, Burns, Hermiston, Pendleton, Boardman, John Day, La Grande, and Ontario. Umatilla County is home to the largest population base in Eastern Oregon, accounting for 42% of the region's residents. Hermiston, located in Umatilla County, is the largest city in the region, accounting for 10% of the population. Major industries include transportation/warehousing, timber, agriculture and tourism. The main transportation corridors are I-84, U.S. Route 395, U.S. Route 97, U.S. Route 26, U.S. Route 30, and U.S. Route 20.
The Harney Basin is an endorheic basin in southeastern Oregon in the United States at the northwestern corner of the Great Basin. One of the least populated areas of the contiguous United States, it is located largely in northern Harney County, bounded on the north and east by the Columbia Plateau—within which it is contained, physiographically speaking—and on the south and west by a volcanic plain. The basin encompasses an area of 1,490 square miles (3,859 km2) in the watershed of Malheur Lake and Harney Lake. Malheur Lake is a freshwater lake, while Harney Lake is saline-alkaline.
Steens Mountain is in the southeastern part of the U.S. state of Oregon, and is a large fault-block mountain. Located in Harney County, it stretches some 50 miles (80 km) north to south, and rises from the west side the Alvord Desert at elevation of about 4,200 feet (1,300 m) to a summit elevation of 9,738 feet (2,968 m). Steens Mountain is not part of a mountain range but is properly a single mountain, the largest of Oregon's fault-block mountains.
The Alvord Desert is a desert located in Harney County, in southeastern Oregon in the Western United States. It is roughly southeast of Steens Mountain. The Alvord Desert is a 12-by-7-mile dry lake bed and averages 7 inches (180 mm) of rain a year. Two mountain ranges separate it from the Pacific Ocean—the Coast Range, and the Cascade Mountains. Along with Steens Mountain, these topographical features create a rain shadow. The Alvord Desert lies at an elevation of approximately 4,000 feet (1,200 m).
Malheur National Wildlife Refuge is a National Wildlife Refuge located roughly 30 miles (48 km) south of the city of Burns in Oregon's Harney Basin. Administered by the United States Fish and Wildlife Service, the refuge area is roughly T-shaped with the southernmost base at Frenchglen, the northeast section at Malheur Lake and the northwest section at Harney Lake.
The Donner und Blitzen River is a river on the eastern Oregon high desert that drains a relatively arid basin, the southern portion of Harney Basin, from roughly 20 to 80 miles south-southeast of Burns including Malheur National Wildlife Refuge. Though much of its course is marsh, it offers scenic glaciated canyons, unique ecosystems, and exceptional wild trout fisheries. Named by soldiers of German origin, the Donner und Blitzen River translates as "thunder and lightning". The name usually brings to mind two of Santa Claus's reindeer, but the river is named for a thunderstorm the soldiers experienced as they crossed the river; dry lightning is an almost daily occurrence in the region during certain times of the year.
Oregon Route 205 (OR 205) is a state highway in Harney County, Oregon, running from Roaring Springs Ranch to OR 78 near Burns. OR 205 is known as the Frenchglen Highway No. 440 . It is 73.35 miles (118.05 km) long and runs north–south, connecting the Malheur National Wildlife Refuge to Burns. The highway has also been designated the High Desert Discovery Scenic Byway by the Bureau of Land Management. Part of OR 205 also is used in the Steens Mountain Back Country Byway, a loop road around Steens Mountain.
Plush is an unincorporated rural community and census-designated place in the Warner Valley of Lake County, in the U.S. state of Oregon. As of the 2010 census it had a population of 57. The community is in an arid, sparsely populated part of the state 39 miles (63 km) by road northeast of Lakeview. The valley surrounding Plush contains many marshes and shallow lakes, most of them intermittent.
Malheur Lake is one of the lakes in the Malheur National Wildlife Refuge in Harney County in the U.S. state of Oregon. Located about 18 miles (29 km) southeast of Burns, the lake is marsh fed by the Donner und Blitzen River from the south and the Silvies River from the north. Malheur Lake periodically overflows into Mud Lake to the west and thence to Harney Lake, the sink of Harney Basin.
Hart Mountain National Antelope Refuge is a National Wildlife Refuge on Hart Mountain in southeastern Oregon, which protects more than 422 square miles (1,090 km2) and more than 300 species of wildlife, including pronghorn, bighorn sheep, mule deer, sage grouse, and Great Basin redband trout. The refuge, created in 1936 as a range for remnant herds of pronghorn, spans habitats ranging from high desert to shallow playa lakes, and is among the largest wildlife habitats containing no domestic livestock.
The Oregon high desert is a region of the U.S. state of Oregon located east of the Cascade Range and south of the Blue Mountains, in the central and eastern parts of the state. Divided into a southern region and a northern region, the desert covers most of five Oregon counties and averages 4,000 feet (1,200 m) above sea level. The southwest region is part of the Great Basin and the southeast is the lower Owyhee River watershed. The northern region is part of the Columbia Plateau, where higher levels of rainfall allow the largest industry on private land to be the cultivation of alfalfa and hay. Public land within the region is owned primarily by the Bureau of Land Management, which manages more than 30,000 square miles (78,000 km2) including five rivers designated as Wild and Scenic.
The Eastern Cascades Slopes and Foothills ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. states of Oregon, Washington, and California. In the rain shadow of the Cascade Range, the eastern side of the mountains experiences greater temperature extremes and receives less precipitation than the west side. Open forests of ponderosa pine and some lodgepole pine distinguish this region from the Cascades ecoregion, where hemlock and fir forests are more common, and from the lower, drier ecoregions to the east, where shrubs and grasslands are predominant. The vegetation is adapted to the prevailing dry, continental climate and frequent wildfire. Volcanic cones and buttes are common in much of the region.
The Northern Basin and Range ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. states of Oregon, Idaho, Nevada, Utah, and California. It contains dissected lava plains, rolling hills, alluvial fans, valleys, and scattered mountain ranges in the northern part of the Great Basin. Although arid, the ecoregion is higher and cooler than the Snake River Plain to the north and has more available moisture and a cooler climate than the Central Basin and Range to the south. Its southern boundary is determined by the highest shoreline of Pleistocene Lake Bonneville, which once inundated the Central Basin and Range. The western part of the region is internally drained; its eastern stream network drains to the Snake River system.
The Trout Creek Mountains are a remote, semi-arid Great Basin mountain range mostly in southeastern Oregon and partially in northern Nevada in the United States. The range's highest point is Orevada View Benchmark, 8,506 feet (2,593 m) above sea level, in Nevada. Disaster Peak, elevation 7,781 feet (2,372 m), is another prominent summit in the Nevada portion of the mountains.
The Warner Valley is a valley in south-central Oregon in the United States. It is a remote valley at the northwestern corner of North America's Basin and Range Province. The valley is home to a chain of lakes and wetlands known as the Warner Lakes. Native Americans were present in the Warner Valley for thousands of years before European explorers arrived in the 19th century. It is the site of Fort Warner, built by the United States Army in 1867. The fort was used as a supply depot and administrative headquarters during a protracted Army campaign against Northern Paiute bands in eastern Oregon and northern California. Today, livestock ranching is the main commercial activity in the valley. The Warner Valley offers a number of recreational opportunities including hunting, fishing, bird watching, and wildlife viewing.
The P Ranch is a historic ranch in Harney County in southeastern Oregon, United States. The remaining ranch structures are located on the west bank of the Donner und Blitzen River in the Malheur National Wildlife Refuge. The ranch was built by Peter French, a well known 19th-century cattle baron. The P Ranch became headquarters for the French-Glenn Livestock Company, which eventually covered over 140,000 acres (570 km2). After French was murdered in 1897, the French-Glenn Livestock Company slowly sold off the P Ranch property. In 1935, the United States Government purchased the remaining P Ranch property to add to an adjacent wildlife refuge. The Civilian Conservation Corps demolished most of the original ranch buildings in the 1930s, and a fire destroyed the main ranch house in 1947. The few remaining P Ranch structures are now listed on the National Register of Historic Places.
The Whitehorse Ranch is a historic cattle ranch in Harney and Malheur counties in the southeastern corner of Oregon, United States. The ranch was started in 1869 by John S. Devine, a well-known 19th-century cattle baron. It was originally the headquarters for the Todhunter and Devine Cattle Company. The ranch has been in the cattle business continuously since it was founded. Today, the Whitehorse Ranch includes 63,222 acres (255.85 km2) of deeded property and grazing rights on an additional 287,205 acres (1,162.28 km2) of public range land administered by the Bureau of Land Management.
The Catlow Valley is a basin in Harney County, Oregon, United States. It is a remote valley at the northwestern corner of North America's Basin and Range Province. The valley is named after a pioneer rancher, John Catlow. The area was used by Native Americans for thousands of years before European explorers arrived in the 19th century. Today, cattle ranching is the main commercial activity in the valley. The public land in the Catlow Valley is administered by the Bureau of Land Management. This public land offers a number of recreational opportunities including hiking, hunting, fishing, bird watching, and wildlife viewing.
The High Desert Discovery Scenic Byway is a 127-mile-long (204 km) scenic highway in the southeastern part of the U.S. state of Oregon. It runs through the state's high desert country from the town of Burns to the unincorporated community of Fields. It was designated as an Oregon Scenic Byway in 2003. The highway is maintained by the Oregon Department of Transportation (ODOT). There are a number of points of interest along the route including several that are listed on the National Register of Historic Places.
