Yamhill County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 99,193. The county seat is McMinnville. According to Oregon Geographic Names, the origin of the name is uncertain, but is probably from an explorer’s name for a local Native American tribe, the Yamhill, who are part of the North Kalapuyan family.

Yamhill County was created in 1843 as one of Oregon’s original four districts. Its present boundaries were established in 1860. The county was named after the Yamhelas, members of the Kalapuya Tribe, who lived along the Yamhill River in the western Willamette Valley.

Today, agriculture is still the county’s primary industry. Nursery and greenhouse crops; fruits, nuts, berries; and hay, silage, field and grass seeds are major agricultural products. Yamhill County ranks sixth out of Oregon’s 36 counties in annual market value of its agricultural production. Yamhill County is also the heart of Oregon’s wine industry. Thirty-six wineries represent the largest concentration of wineries in any county and produce the greatest number of award-winning wines in the state. A third of the county is covered with commercial timber. The mainstay of the western valley area is logging and timber products. Non-seasonal industries include a steel rolling mill, electronic and dental equipment manufacturing, an international airline and helicopter company, and a newsprint mill.

Points of interest for Yamhill County are Linfield College, George Fox University, Herbert Hoover House, military blockhouse, Yamhill County Historical Museum, Wheatland Ferry, Captain Michael Smith Evergreen Aviation and Space Museum and Rogers Landing

Clackamas County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 375,992, making it the third-most populous county in Oregon. Its county seat is Oregon City. The county was named after the Native Americans living in the area, the Clackamas Indians, who were part of the Chinookan people. The historic town of Oregon City is located in Clackamas County, a region also known as Oregon’s Mt. Hood Territory. It’s a short drive away from some of the best recreation in the country. Oregon City, the first incorporated city west of the Rocky Mountains, marks the end of the Oregon Trail. From the 11,245-foot peak of its most recognized landmark, majestic Mount Hood, to the fertile Willamette Valley agritourism farms where homegrown specialties include tulips, berries, Christmas trees and wines, Oregon’s Mt. Hood Territory is ripe with activities to be explored. Area offerings include historic tales stretching back to Pioneer days along the Oregon Trail and the Barlow Road, an abundance of festivals and events, diverse lodging and tax-free shopping. Year-round recreation for all skill levels stretches from the mountain (skiing, snowboarding and snowshoeing) to our rivers and lakes (whitewater rafting, kayaking, fishing and swimming) our trails (mountain biking, hiking, climbing and horseback riding) and other activities such as golfing and camping.

Columbia County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 49,351. The county seat is St. Helens. It was named for the Columbia River, which forms its eastern and northern borders. Columbia County is bordered on the east by the Columbia River, on the south by Multnomah County and Washington County, and on the west by Clatsop County. The southern County line is approximately 30 minutes from Portland, the largest metropolitan area in Oregon. The western County line is approximately 30 minutes from the Pacific coast. The County’s northern and eastern boundaries are outlined by 62 miles of Columbia River shoreline. Columbia County enjoys the longest stretch of the Columbia River in the State of Oregon. The Columbia River is a major route of ocean-going vessels and is a popular fishing ground, as well as a popular boating and windsurfing river. Facts regarding the early history of Columbia County are few. It is known that a New England trading vessel, the Columbia Rediviva, commanded by Captain Robert Gray arrived in the summer of 1792 with the first Euro-Americans to see the County’s timbered shoreline. In 1805, the explorers Lewis and Clark traveled and camped along the County’s Columbia River shoreline. Carved out of Washington County in 1854, its past was tied to commercial fishing, water transportation and lumber. Industrialization has accelerated in recent years but timber, dairy and horticulture remain important. Natural gas fields have been identified and are producing. The County offers the only two marine parks in Oregon: Sand Island on the Columbia River and J.J. Collins Memorial Marine Park on the Multnomah Channel.

Crook County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 20,978. The county seat is Prineville. The county is named after George Crook, a U.S. Army officer who served in the American Civil War and various Indian Wars.

Crook County is located in the center of the state, approximately three hours from Portland, Salem, Corvallis and Eugene. Bend, the largest city in central Oregon, is approximately 40 minutes away.

Geographically Crook County, with a population of approximately 26,845, is Oregon’s most centrally located county. Founded in 1882, the county seat, Prineville, has a population of 10,370. It is the only incorporated population center within Crook County. Powell Butte, Post and Paulina are the other communities found within the County.

Livestock, forest products, recreation, agriculture, manufacturing and wholesale trade comprise the major industries found within the county. Covering approximately 2,991 square miles, Crook County is rich in forests, rangelands and irrigated agricultural fields. The elevation of Prineville is 2,868 feet and receives an averages of 10.5 inches of moisture per year. Nights are cool and daytime temperatures are moderate. Average temperature in January is 31.8 degrees; in July it is 64.5 degrees.

Jefferson County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 21,720. The county seat is Madras. The county is named after Mount Jefferson.

Jefferson County was established in 1914 from a portion of Crook County. It was named for Mount Jefferson on its western boundary. The county owes much of its agricultural prosperity to the railroad, which arrived in 1911, and to the development of irrigation projects in the late 1930s. The railroad, which links Madras with the Columbia River, was completed after constant feuds and battles between two lines working on opposite sides of the Deschutes River.

Vegetable, grass and flower seeds, garlic, mint and sugar beets are cultivated on some 60,000 irrigated acres. Jefferson County also has vast acreages of rangelands and a healthy industrial base related to forest products. The Warm Springs Forest Products Industry, a multi-million dollar complex owned by the Confederated Tribes of the Warm Springs Reservation—partially located in the northwestern corner of the county—is the single biggest industry. With 300 days of sunshine and a low yearly rainfall, fishing, hunting, camping, boating, water-skiing and rock hunting are popular recreations.

Points of interest in Jefferson County are Mt. Jefferson, Warm Springs Indian Reservation, Metolius River, Black Butte, Suttle Lake, Blue Lake, Santiam Summit, Lake Billy Chinook behind Round Butte Dam, Haystack Reservoir and Priday Agate Beds.

Multnomah County is one of 36 counties in the U.S. state of Oregon. As of the 2010 census, the county’s population was 735,334, making it the most populous county in Oregon. Its county seat, Portland, is the state’s largest city.

Multnomah County was created when the people living in Portland found it difficult to travel to Hillsboro to conduct business at the county seat of Washington County. They also thought that they were paying too much in taxes to support the farmers in the rural areas surrounding Portland. In 1854, Portland businessmen petitioned the Territorial Legislature for a new county and Multnomah County was created at the subsequent session. The county was named after the Multnomah Indians who were part of the Chinookan tribe that lived on the eastern tip of what is now Sauvie Island in the Columbia River. The City of Portland was chartered in 1851 and made the county seat in 1854. The Multnomah County Commissioners met for the first time on January 17, 1855.

The principle industries of Multnomah County are manufacturing, transportation, wholesale and retail trade, and tourism. Tourism attractions in Multnomah County include the Oregon Museum of Science and Industry, Washington Park and Zoo, Oregon Historical Society, Portland Art Museum, Rose Test Gardens, and Japanese Garden in Portland, and Multnomah Falls in the Columbia River Gorge. The Port of Portland, established in 1891, exports more wheat from its marine terminals than any American port. The port also ranks high in overall tonnage and the importation of automobiles.

Washington County is one of 36 counties in the U.S. state of Oregon. As of the 2010 census, the population was 529,710, making it the second most populous county in the state. The county seat and largest city is Hillsboro.

Originally named Twality when created in 1843, the territorial legislature renamed it for the first president of the United States, George Washington, in 1849. The original boundaries included the entire northwest corner of Oregon before sections became new counties. The Tualatin River and its drainage basin are almost entirely within the county, with the county nearly coterminous with the Tualatin Valley. It is bordered on the west and north by the Northern Oregon Coast Range, on the south by the Chehalem Mountains, and on the north and east by the Tualatin Mountains (or West Hills).

Oregon’s Washington County is a short drive from Portland, in the northern Willamette Valley of Oregon wine country. Home to nationally renowned golf courses, award-winning wineries, tax-free shopping, hands-on agricultural experiences, outdoor recreational activities, scenic drives, cycling trails and more, Washington County offers an unparalleled experience for all travelers.

Explore the scenic beauty of the area along the 60-mile Vineyard and Valley Scenic Tour Route, which winds through agricultural lands and bucolic communities, showcasing Pacific Northwest wineries, vineyards and farms. Ride the Tualatin Valley Scenic Bikeway for a 50-mile tour through Washington County’s rural communities and lush forests.