Kittitas County is a county located in the U.S. state of Washington. At the 2020 census, its population was 44,337. Its county seat and largest city is Ellensburg. The county was created in November 1883 when it was carved out of Yakima County. Kittitas County comprises the Ellensburg, Washington, Micropolitan Statistical Area.
Interstate 82 (I-82) is an Interstate Highway in the Pacific Northwest region of the United States that travels through parts of Washington and Oregon. It runs 144 miles (232 km) from its northwestern terminus at I-90 in Ellensburg, Washington, to its southeastern terminus at I-84 in Hermiston, Oregon. The highway passes through Yakima and the Tri-Cities, and is also part of the link between Seattle and Salt Lake City, Utah. I-82 travels concurrently with U.S. Route 97 (US 97) between Ellensburg and Union Gap; US 12 from Yakima to the Tri-Cities; and US 395 from Kennewick to Umatilla, Oregon.
Thorp is an unincorporated community and census-designated place (CDP) in Kittitas County, Washington, United States. In 2020, the population was 232.
U.S. Route 97 (US 97) is a major north–south route of the United States Numbered Highway System in the Pacific Northwest region. It runs for approximately 670 miles (1,078 km) through the states of California, Oregon, and Washington, primarily serving interior areas on the east side of the Cascade Mountains. The highway terminates to the south at a junction with Interstate 5 (I-5) in Weed, California, and to the north at the Canadian border near Osoyoos, British Columbia, where it becomes British Columbia Highway 97. Major cities on the US 97 corridor include Klamath Falls, Bend, and Redmond in Oregon; and Yakima, Ellensburg, and Wenatchee in Washington. A portion of the highway in California and Oregon is part of the Volcanic Legacy Scenic Byway.
The Wenatchee Mountains are a range of mountains in central Washington State, United States of America. A major subrange of the Cascade Range, extending east 50 miles (80 km) from the Cascade crest, the Wenatchee Mountains separate the drainage basins of the Yakima River from the Wenatchee River. The crest of the range forms part of the boundary between Chelan and Kittitas Counties.
Goldendale Observatory State Park is an educational facility on the northern side of Goldendale, Washington, notable for its unusually large public telescope. The state park occupies five acres (2.0 ha) atop a 2,100-foot (640 m) hill.
Kittatinny Mountain is a long ridge traversing primarily across Sussex County in northwestern New Jersey, running in a northeast-southwest axis, a continuation across the Delaware Water Gap of Pennsylvania's Blue Mountain. It is the first major ridge in the far northeastern extension of the Ridge and Valley province of the Appalachian Mountains, and reaches its highest elevation, 1,803 feet, at High Point in Montague Township. Kittatinny Mountain forms the eastern side of Wallpack Valley; the western side comprises the Wallpack Ridge (highest elevation: 928 feet above sea level.
State Route 821 (SR 821) is a state highway in central Washington state. It runs for 25 miles (40 km) through the Yakima Canyon, following the meandering Yakima River between Selah and Ellensburg. Both ends of the highway are at interchanges with Interstate 82 (I-82) and U.S. Route 97 (US 97).
Keechelus Lake is a lake and reservoir in the northwest United States, near Hyak in Kittitas County, Washington. Approximately fifty miles (80 km) southeast of Seattle and a few miles southeast of Snoqualmie Pass, it is the source of the Yakima River.
Umtanum Ridge Water Gap is a geologic feature in Washington state in the United States. It includes the Yakima Canyon, and is located between the cities of Ellensburg and Yakima in central Washington. Washington State Route 821 was once the main route between Ellensburg and Yakima. The old highway still runs close to the river through the canyon, with Interstate 82 currently carrying most traffic between Ellensburg and Yakima on large bridges nearby.
U.S. Route 97 in the U.S. state of Washington is a 322-mile (518 km) route which traverses from the Oregon state line at the northern end of the Sam Hill Memorial Bridge in Maryhill, north to the Canada–US border in Okanogan County near Oroville. The highway serves major cities such as Goldendale, Yakima, Ellensburg and Wenatchee before continuing towards the Alaska Highway at the Yukon border as British Columbia Highway 97. Along the length of the roadway, US 97 is concurrent with State Route 14 in Maryhill, Interstate 82 (I-82) and US 12 between Union Gap and Ellensburg, I-90 briefly in Ellensburg, US 2 between Peshastin and rural Douglas County and SR 20 near Omak. An alternate route connects the highway with Chelan.
The Yakima Training Center (YTC) is a United States Army training center, used for maneuver training, Land Warrior system testing and as a live fire exercise area. It is located in the south central portion of the U.S. state of Washington, bounded on the west by Interstate 82, on the south by the city of Yakima, on the north by the city of Ellensburg and Interstate 90, and on the east by the Columbia River. It is a part of Joint Base Lewis-McChord. It comprises 327,000 acres of land, most of which consists of shrub-steppe, making it one of the largest areas of shrub-steppe habitat remaining in Washington state. The terrain is undulating and dominated by three east-west parallel ridges, the Saddle Mountains, Manastash Ridge, and Umtanum Ridge anticlines, which are part of the Yakima Fold Belt near the western edge of the Columbia River Plateau. Vegetation consists of sagebrush, bitterbrush, and bunch grass. Vagabond Army Airfield and Selah Airstrip are located on the Yakima Training Center. The training center is also used by the Japan Ground Self-Defense Force for exercises.
The Rattlesnake Hills, also known as Rattlesnake Ridge, is a 16-mile (26 km) long anticline mountain ridge in Yakima County and Benton County in the U.S. state of Washington. It should not be confused with the much smaller Rattlesnake Ridge located near the west end of Ahtanum Ridge just south of Yakima, Washington and west of Union Gap, Washington. The highest point in the hills is the 3,629 feet (1,106 m) Lookout Summit, which surpasses the more well-known Rattlesnake Mountain by approximately 100 ft (30 m). The Rattlesnake Hills are part of the Yakima Fold Belt of east-tending long ridges formed by the folding of Miocene Columbia River basalt flows.
Ahtanum Ridge is a long anticline mountain ridge in Yakima County in the U.S. state of Washington. It is located just south of the city of Yakima, and much of its length is at the northern edge of the Yakama Indian Reservation. Its name comes from the Sahaptin toponym [átanɨm].
Umtanum Ridge is a long anticline mountain ridge in Yakima County and Kittitas County in the U.S. state of Washington. It runs for approximately 55 miles east-southeast from the Cascade Range, through the Yakima Training Center to the edge of the Columbia River at Priest Rapids Dam and Hanford Reach. The eastern end of Umtanum Ridge enters Hanford Reach National Monument and the Hanford Site. Umtanum Ridge is paralleled on the north by Manastash Ridge and on the south by Yakima Ridge. The Yakima River cuts through the ridge at the Umtanum Ridge Water Gap.
The Manastash Ridge Radar is a passive radar which uses commercial FM broadcasts to study ionospheric turbulence as well as meteor trails, and aircraft. The radar is passive and bistatic; there are receivers located at the University of Washington as well as at Manastash Ridge, which are synchronized to permit coherent operation.
Snipes Mountain is an American Viticultural Area (AVA) located in the Yakima Valley of Washington state. It was established by the Alcohol and Tobacco Tax and Trade Bureau (TTB), Treasury on January 21, 2009 as the state's 10th AVA. It is the second smallest AVA in the state, after the Red Mountain AVA, and has one of the state's longest viticultural histories. The 4,145 acres (6 sq mi) appellation is a sub-AVA of the Yakima Valley AVA and the Columbia Valley AVA. It is located above and between the towns of Sunnyside and Granger around Outlook, Washington, in the southeast corner of the Yakima Valley.
Badger Mountain is a small mountain in Richland, Washington. Badger rises above the Tri-Cities connected to the smaller Candy Mountain via Goose Gap, is visible throughout much of the area and is a popular hiking destination for a wide variety of climbers. There are a number of trails climbing the mountain with varying levels of difficulty. There are two summits on Badger Mountain, named the East Summit and the West Summit. The West Summit is the highest.
The following outline is provided as an overview of and topical guide to infrastructure of the U.S. state of Washington.
Selah Gap is a water gap carved by the Yakima River through the Yakima Ridge basalt formation between Yakima, Washington and Selah, Washington. The gap is traversed by BNSF Railway, Interstate 82, and Washington State Route 823. The Yakima Greenway trail for non motorized users also crosses the Yakima River at Selah Gap on an 1884 railroad bridge. The William O. Douglas Trail, named for William O. Douglas who hiked there from his home in Yakima, also crosses the gap and ascends the ridge on its way to Mount Rainier.
