Siskiyou County is a county in the northernmost part of the U.S. state of California. As of the 2010 census, the population was 44,900. Its county seat is Yreka and its highest point is Mount Shasta.
Klamath County is a county in the U.S. state of Oregon. As of the 2010 census, the population was 66,380. The county seat is Klamath Falls. The county was named for the Klamath, the tribe of Native Americans living in the area at the time the first European explorers entered the region.
Klamath Falls is a city in and the county seat of Klamath County, Oregon, United States. The city was originally called Linkville when George Nurse founded the town in 1867. It was named after the Link River, on whose falls the city was sited. The name was changed to Klamath Falls in 1893. The population was estimated to be 21,536 at the 2018 census. The city is on the southeastern shore of the Upper Klamath Lake and approximately 25 miles (40 km) north of the California–Oregon border.
The Modoc are a Native American people who originally lived in the area which is now northeastern California and central Southern Oregon. They are currently divided between Oregon and Oklahoma and are enrolled in either of two federally recognized tribes, the Klamath Tribes in Oregon and the Modoc Tribe of Oklahoma.
The Klamath River flows 257 miles (414 km) through Oregon and northern California in the United States, emptying into the Pacific Ocean. By average discharge, the Klamath is the second largest river in California after the Sacramento River. It drains an extensive watershed of almost 16,000 square miles (41,000 km2) that stretches from the arid country of south-central Oregon to the temperate rainforest of the Pacific coast. Unlike most rivers, the Klamath begins in the high desert and flows toward the mountains – carving its way through the rugged Cascade Range and Klamath Mountains before reaching the sea. The upper basin, today used for farming and ranching, once contained vast freshwater marshes that provided habitat for abundant wildlife, including millions of migratory birds. Most of the lower basin remains wild, with much of it designated wilderness. The watershed is known for this peculiar geography, and the Klamath has been called "a river upside down" by National Geographic magazine.
Upper Klamath Lake is a large, shallow freshwater lake east of the Cascade Range in south-central Oregon in the United States. The largest body of fresh water by surface area in Oregon, it is approximately 25 miles (40 km) long and 8 miles (13 km) wide and extends northwest from the city of Klamath Falls. It sits at an average elevation of 4,140 feet (1,260 m).
The Volcanic Legacy Scenic Byway is a scenic highway and All-American Road in the U.S. states of California and Oregon. It is roughly 500 miles (804.7 km) long and travels north–south along the Cascade Range past numerous volcanoes. It is composed of two separate National Scenic Byways, the Volcanic Legacy Scenic Byway - Oregon and Volcanic Legacy Scenic Byway - California. The latter also wholly includes the Lassen Scenic Byway.
Tule Lake is an intermittent lake covering an area of 13,000 acres (53 km2), 8.0 km (5.0 mi) long and 4.8 km (3.0 mi) across, in northeastern Siskiyou County and northwestern Modoc County in California, along the border with Oregon.
The Klamath Project is a water-management project developed by the United States Bureau of Reclamation to supply farmers with irrigation water and farmland in the Klamath Basin. The project also supplies water to the Tule Lake National Wildlife Refuge, and the Lower Klamath National Wildlife Refuge. The project was one of the first to be developed by the Reclamation Service, which later became the Bureau of Reclamation.
The Klamath Basin National Wildlife Refuge Complex is a wildlife preserve operated by the United States Fish and Wildlife Service in the Klamath Basin of southern Oregon and northern California near Klamath Falls, Oregon. It consists of Bear Valley, Klamath Marsh and Upper Klamath National Wildlife Refuge (NWR) in southern Oregon and Lower Klamath, Tule Lake, and Clear Lake NWR in northern California.
The Lower Klamath National Wildlife Refuge is a National Wildlife Refuge of the United States on the border between California and Oregon. It is operated by the United States Fish and Wildlife Service. The refuge was designated a National Historic Landmark on October 16, 1965.
The Pacific Flyway is a major north-south flyway for migratory birds in America, extending from Alaska to Patagonia. Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading to breeding grounds, or travelling to overwintering sites.
The Klamath Basin is the region in the U.S. states of Oregon and California drained by the Klamath River. It contains most of Klamath County and parts of Lake and Jackson counties in Oregon, and parts of Del Norte, Humboldt, Modoc, Siskiyou, and Trinity counties in California. The 15,751-square-mile (40,790 km2) drainage basin is 35% in Oregon and 65% in California. In Oregon, the watershed typically lies east of the Cascade Range, while California contains most of the river's segment that passes through the mountains. In the Oregon-far northern California segment of the river, the watershed is semi-desert at lower elevations and dry alpine in the upper elevations. In the western part of the basin, in California, however, the climate is more of temperate rainforest, and the Trinity River watershed consists of a more typical alpine climate.
The Willamette Valley ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency in the U.S. states of Oregon and Washington. Slightly larger than the Willamette Valley for which it is named, the ecoregion contains fluvial terraces and floodplains of the Willamette River system, scattered hills, buttes, and adjacent foothills. It is distinguished from the neighboring Coast Range, Cascades, and Klamath Mountains ecoregions by lower precipitation, lower elevation, less relief, and a different mosaic of vegetation. Mean annual rainfall is 37 to 60 inches, and summers are generally dry. Historically, the region was covered by rolling prairies, oak savanna, coniferous forests, extensive wetlands, and deciduous riparian forests. Today, it contains the bulk of Oregon's population, industry, commerce, and agriculture. Productive soils and a temperate climate make it one of the most important agricultural areas in Oregon.
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 Upper Klamath National Wildlife Refuge is a wildlife refuge in southwestern Klamath County on the shores of Upper Klamath Lake in Oregon. It was established in 1928 and contains some 14,400 acres (5,800 ha) of freshwater marshes. It is accessible only by boat from Rocky Point Resort and Rocky Point boat launch, Malone springs, and a few neighboring ramps. The refuge is part of the Klamath Basin National Wildlife Refuge Complex and is administered along with the other refuges of the complex from common offices in Tulelake, California.
The Bear Valley National Wildlife Refuge is a wildlife refuge in the southwestern part of Klamath County, Oregon, near the California border. It was established in 1978 to protect the nesting areas of bald eagles. The refuge is part of the Klamath Basin National Wildlife Refuge Complex and has an area of 4,200 acres (1,700 ha) It is administered along with the other refuges in the complex from offices in Tulelake, California.
Franz Lake National Wildlife Refuge is located in southwest Washington State, within the Columbia River Gorge National Scenic Area. The refuge provides a variety of habitats including riparian wetlands, Columbia River riparian corridor blocks, transitional woodlands from lower elevation willows, and cottonwoods to mid-elevation old-growth fir and cedar with associated native understory shrubs, open meadows, and numerous streams and seeps.
Miller Creek is a 7.6-mile-long (12.2 km) stream in western Klamath County, Oregon, United States. It originates above Gerber Reservoir and empties into irrigation canals within Langell Valley southeast of Bonanza and finally into the Lost River.
Lake Modoc is a former lake in California and Oregon, in the location of present-day Upper Klamath Lake, Lower Klamath Lake and Tule Lake. It existed during the Pliocene and Pleistocene epochs, its formation probably influenced by volcanism and faulting. The bed of the former lake had plentiful resources for early humans, and today it is used for agriculture.
