The Tualatin Valley is a farming and suburban region southwest of

Portland Portland most commonly refers to: * Portland, Oregon, the largest city in the state of Oregon, in the Pacific Northwest region of the United States * Portland, Maine, the largest city in the state of Maine, in the New England region of the northeas ...

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. The valley is formed by the

meander A meander is one of a series of regular sinuous curves in the channel of a river or other watercourse. It is produced as a watercourse erodes the sediments of an outer, concave bank ( cut bank) and deposits sediments on an inner, convex bank ...

ing

Tualatin River The Tualatin River is a tributary of the Willamette River in Oregon in the United States. The river is about long, and it drains a fertile farming region called the Tualatin Valley southwest and west of Portland at the northwest corner of the W ...

, a tributary of the

Willamette River The Willamette River ( ) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States. Flowing northward b ...

at the northwest corner of the

Willamette Valley The Willamette Valley ( ) is a long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, ...

, east of the

Northern Oregon Coast Range The Northern Oregon Coast Range is the northern section of the Oregon Coast Range, in the Pacific Coast Ranges physiographic region, located in the northwest portion of the state of Oregon, United States. This section of the mountain range, part ...

. Most of the valley is located within Washington County, separated from Portland by the

Tualatin Mountains The Tualatin Mountains (also known as the West Hills or Southwest Hills of Portland) are a range on the western border of Multnomah County, Oregon, United States. A spur of the Northern Oregon Coast Range, they separate the Tualatin Basin of Washi ...

. Communities in the Tualatin Valley include

Banks A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets. Becaus ...

, Forest Grove, Cornelius, Hillsboro, Aloha, Beaverton,

Sherwood Sherwood may refer to: Places Australia *Sherwood, Queensland, a suburb of Brisbane *Sherwood, South Australia, a locality *Shire of Sherwood, a former local government area of Queensland *Electoral district of Sherwood, an electoral district from ...

, Tigard, and Tualatin.

History

In the early 19th century, the valley was inhabited by the

Atfalati The Atfalati , also known as the Tualatin or Wapato Lake IndiansRobert H. Ruby, John A. Brown & Cary C. Collins, Atfalati, in ''A Guide to the Indian Tribes of the Pacific Northwest'' (3d ed. 2010, University of Oklahoma Press) are a tribe of the ...

, a hunter-gatherer

Kalapuya The Kalapuya are a Native American people, which had eight independent groups speaking three mutually intelligible dialects. The Kalapuya tribes' traditional homelands were the Willamette Valley of present-day western Oregon in the United Sta ...

n band that spoke a dialect of Northern Kalapuyan. In the middle 19th century, the Atfalati lived in several villages in the valley, including Chakeipi ("Place of the Beaver", translated by early white settlers as "Beaver Dam"). Early Euro-American settlers called the valley the "Twality Plains", a corruption of the name of the Atfalati tribe. Other early variations included Falatin, Nefalatine, Twalaity, and Quality, with each roughly translated as slow river to describe the Tualatin River, or may translate as land without trees. The valley was one of the earliest settled farming regions in Oregon, as settlers began arriving in 1840. In the spring of 1847, Lawrence Hall filed the first land claim, comprising 640 acres (2.6 km²), at Beaver Dam (later Beaverton) and constructed the first grist mill in the valley. In 1849 Thomas Hicklin Denney and his wife Berrilla built the first sawmill in the Beaverton area, leading to a later boom in the

timber industry Lumber is wood that has been processed into dimensional lumber, including beams and planks or boards, a stage in the process of wood production. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, w ...

. The lack of roads connecting the upper valley to the Willamette River quickly became a hindrance to early settlers. In 1850, the

Oregon Territory The Territory of Oregon was an organized incorporated territory of the United States that existed from August 14, 1848, until February 14, 1859, when the southwestern portion of the territory was admitted to the Union as the State of Oregon. Ori ...

created the Portland & Valley Plank Road Company to build a road through the Tualatin Hills connecting Portland with Beaverton. The road was completed in 1860 after financial setbacks. According to Oregon

historian A historian is a person who studies and writes about the past and is regarded as an authority on it. Historians are concerned with the continuous, methodical narrative and research of past events as relating to the human race; as well as the stu ...

Stewart Holbrook Stewart Hall Holbrook (1893–1964) was an American logger, writer, and popular historian. His writings focused on what he called the "Far Corner": Washington, Oregon, and Idaho. A self-proclaimed "low-brow" historian, his topics included Ethan ...

, the building of the

plank road A plank road is a road composed of wooden planks or puncheon logs. Plank roads were commonly found in the Canadian province of Ontario as well as the Northeast and Midwest of the United States in the first half of the 19th century. They were oft ...

was the decisive event that allowed Portland to surpass its rival Oregon City for supremacy as the economic hub of the territory. The

railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...

was extended into the valley in 1868. The growth of agriculture in the valley was eventually limited in the middle 20th century by the need for

irrigation Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow Crop, crops, Landscape plant, landscape plants, and Lawn, lawns. Irrigation has been a key aspect of agriculture for over 5,00 ...

. In 1966, the

United States Bureau of Reclamation The Bureau of Reclamation, and formerly the United States Reclamation Service, is a federal agency under the U.S. Department of the Interior, which oversees water resource management, specifically as it applies to the oversight and opera ...

built the Tualatin Project, bringing additional water to many parts of the valley in the last federal reclamation project in the

Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though ...

. In the second half of the 20th century the valley became increasingly suburbanized and now forms a distinct cultural area that rivals Portland itself in political and economic influence. The communities along the

Tualatin Valley Highway The Tualatin Valley Highway No. 29 (see Oregon highways and routes) is an Oregon highway which passes through the Tualatin Valley, between the cities of McMinnville and Beaverton. Between McMinnville and Forest Grove, the highway is signed as ...

(the descendant of the old plank road), form a suburban corridor stretching west of Beaverton. Beaverton is famous as the location of the

Nike, Inc. Nike, Inc. ( or ) is an American multinational corporation that is engaged in the design, development, manufacturing, and worldwide marketing and sales of footwear, apparel, equipment, accessories, and services. The company is headquartered ne ...

campus, the company's world-wide headquarters. Nike, along with

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

in Hillsboro, provide a large base of employment in the valley. Much of the valley is now within the Portland

urban growth boundary An urban growth boundary, or UGB, is a regional boundary, set in an attempt to control urban sprawl by, in its simplest form, mandating that the area inside the boundary be used for urban development and the area outside be preserved in its natural ...

, resulting in a suburban growth patterns that interspersed with remaining areas of orchards and farm fields. Most of the communities in the valley are served by

TriMet TriMet, formally known as the Tri-County Metropolitan Transportation District of Oregon, is a public agency that operates mass transit in a region that spans most of the Portland metropolitan area in the U.S. state of Oregon. Created in 1969 ...

, the Portland-area mass transit agency. In 1998, the

MAX Light Rail The Metropolitan Area Express (MAX) is a light rail system serving the Portland metropolitan area in the U.S. state of Oregon. Owned and operated by TriMet, it consists of five color-designated lines that altogether connect the six sections ...

system was extended from Portland into the valley as far as Hillsboro. Tualatin Valley sits at the northwestern edge of the

, known for its production of wine, especially Pinot Noir. Established in 1970 in Tualatin Valley
Ponzi Vineyards
was among the first Oregon wineries to produce estate-grown Pinot Noir. Its 130 acres of family-owned vineyards are LIVE Certified Sustainable and it is one of the largest wineries in Oregon. As of June 3, 2020, Ponzi Vineyards is located within the Laurelwood District American Viticultural Area (AVA) which was approved by the

Alcohol and Tobacco Tax and Trade Bureau The Alcohol and Tobacco Tax and Trade Bureau, statutorily named the Tax and Trade Bureau and frequently shortened to TTB, is a bureau of the United States Department of the Treasury, which regulates and collects taxes on trade and imports of alcoho ...

(TTB). The Tualatin Hills AVA was also approved at the same time in 2020. The two AVAs share a small portion of their boundaries and contain among the highest concentrations of Laurelwood soils in the state.

Geography

The valley is traversed by the

and is bordered on the north and east by the

, a spur of the

. The latter range also comprises the valley's western border. To the south lie the

Chehalem Mountains The Chehalem Mountains are a mountain range located in the Willamette Valley in the U.S. state of Oregon. Forming the southern boundary of the Tualatin Valley, the Chehalems are the highest mountains in the Willamette Valley. The range extends fr ...

, separating the region from the main

. The Tualatin River flows mainly from the west to the east and leaves the valley in the southeast at West Linn in Clackamas County. Tualatin Valley's geographical center is located southeast of Hillsboro, and the general elevation of the valley is above

sea-level Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised ...

Attractions

* Tualatin River National Wildlife Refuge * L.L. Stub Stewart State Park * Scoggins Valley Park & Henry Hagg Lake *

Jackson Bottom Wetlands Preserve Jackson Bottom Wetlands Preserve in Hillsboro, Oregon, United States, is a wetlands area along the Tualatin River in Washington County, Oregon. Located on the south end of the city along Highway 219, this lowland area is a designated Important ...

* Rice Northwest Museum of Rocks and Minerals

References

{{Oregon Valleys of Oregon Regions of Oregon Landforms of Washington County, Oregon River valleys of the United States

History

Geography

Attractions

See also

References