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 187 miles (301 km) long, lying entirely in northwestern Oregon in the United States. Flowing northward between the Oregon Coast Range and the Cascade Range, the river and its tributaries form the Willamette Valley, a basin that contains two-thirds of Oregon's population, including the state capital, Salem, and the state's largest city, Portland, which surrounds the Willamette's mouth at the Columbia.
The Public Land Survey System (PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling. Also known as the Rectangular Survey System, it was created by the Land Ordinance of 1785 to survey land ceded to the United States by the Treaty of Paris in 1783, following the end of the American Revolution. Beginning with the Seven Ranges in present-day Ohio, the PLSS has been used as the primary survey method in the United States. Following the passage of the Northwest Ordinance in 1787, the Surveyor General of the Northwest Territory platted lands in the Northwest Territory. The Surveyor General was later merged with the United States General Land Office, which later became a part of the U.S. Bureau of Land Management (BLM). Today, the BLM controls the survey, sale, and settling of lands acquired by the United States.
The Santiam River is a tributary of the Willamette River, about 12 miles (19 km) long, in western Oregon in the United States. Through its two principal tributaries, the North Santiam and the South Santiam rivers, it drains a large area of the Cascade Range at the eastern side of the Willamette Valley east of Salem and Corvallis.
The Dominion Land Survey is the method used to divide most of Western Canada into one-square-mile (2.6 km2) sections for agricultural and other purposes. It is based on the layout of the Public Land Survey System used in the United States, but has several differences. The DLS is the dominant survey method in the Prairie provinces, and it is also used in British Columbia along the Railway Belt, and in the Peace River Block in the northeast of the province.
Forest Park is a public municipal park in the Tualatin Mountains west of downtown Portland, Oregon, United States. Stretching for more than 8 miles (13 km) on hillsides overlooking the Willamette River, it is one of the country's largest urban forest reserves. The park, a major component of a regional system of parks and trails, covers more than 5,100 acres (2,064 ha) of mostly second-growth forest with a few patches of old growth. More than 80 miles (130 km) of recreational trails, including the Wildwood Trail segment of the city's 40-Mile Loop system, crisscross the park.
In surveying, a baseline is generally a line between two points on the Earth's surface and the direction and/or distance between them.
Interstate 84 (I-84) is an Interstate Highway in the northwestern United States. The highway runs almost 770 miles from Portland, Oregon, to a junction with I-80 near Echo, Utah. The highway serves and connects Portland, Boise, and Ogden, Utah. With connections to other highways, I-84 connects these cities to points east and also serves as part of a corridor between Seattle and Salt Lake City. The sections running through Oregon and Idaho are also known as the Vietnam Veterans Memorial Highway.
The Washington meridians are four meridians that were used as prime meridians in the United States which pass through Washington, D.C. The four that have been specified are:
- through the Capitol
- through the White House
- through the old Naval Observatory
- through the new Naval Observatory.
Oregon Route 219 is an Oregon state highway which runs between the cities of Hillsboro and Woodburn, Oregon, in the United States. The Hillsboro-Silverton Highway continues further south to Silverton, signed as OR 214. The highway mainly serves local residents and agricultural traffic, despite its proximity to the Portland area it lies outside the Portland Urban Growth Boundary, and maintains its character as a country road.
The Michigan meridian is the principal meridian used as a reference in the Michigan Survey, the survey of the U.S. state of Michigan in the early 19th century. It is located at 84 degrees, 21 minutes and 53 seconds west longitude at its northern terminus at Sault Ste. Marie, and varies very little from that line down the length of the state.
U.S. Route 30 (US 30) in the U.S. state of Oregon is a major east–west United States Numbered Highway that runs from its western terminus in Astoria to the Idaho border east of Ontario. West of Portland, US 30 generally follows the southern shore of the Columbia River; east of Portland, the highway has largely been replaced with Interstate 84 (I-84), though it is signed all the way across the state, and diverges from the I-84 mainline in several towns as a de facto business route. Out of all the states US 30 traverses, it spends the most time in Oregon. At 477.02 miles (767.69 km), it is also the longest road in the state.
A principal meridian is a meridian used for survey control in a large region.
Interstate 5 (I-5) in the U.S. state of Oregon is a major Interstate Highway that traverses the state from north to south. It travels to the west of the Cascade Mountains, connecting Portland to Salem, Eugene, Medford, and other major cities in the Willamette Valley and across the northern Siskiyou Mountains. The highway runs 308 miles (496 km) from the California state line near Ashland to the Washington state line in northern Portland, forming the central part of Interstate 5's route between Mexico and Canada.
Noble Woods Park is a wooded city park in Hillsboro, Oregon, United States. Located on approximately 40 acres (160,000 m2) along Rock Creek, the nature park with wetlands and forests is situated between West Baseline Road on the north and Southwest Borwick Road to the south near the Orenco neighborhood. The city acquired the land for the park in 1992 and opened the park in the eastern section of the city in 1998. Noble Woods has two entrances, a picnic area, and hiking trails.
Balch Creek is a 3.5-mile (5.6 km) tributary of the Willamette River in the U.S. state of Oregon. Beginning at the crest of the Tualatin Mountains, the creek flows generally east down a canyon along Northwest Cornell Road in unincorporated Multnomah County and through the Macleay Park section of Forest Park, a large municipal park in Portland. At the lower end of the park, the stream enters a pipe and remains underground until reaching the river. Danford Balch, after whom the creek is named, settled a land claim along the creek in the mid-19th century. After murdering his son-in-law, he became the first person legally hanged in Oregon.
Cornelius Pass Road is an arterial road in the Portland metropolitan area of Oregon, United States. The north-south road serves as an arterial connection between Burlington and Hillsboro. It intersects with several main roads throughout its route.
Rockwood is a neighborhood in the northwest section of Gresham, Oregon. It is one of the most densely populated and diverse neighborhoods in Gresham, though it is also one of the poorest in the state.
The Stone Bridge is a causeway built by the United States Army in 1867. It crosses the marshy channel that connects Hart Lake and Crump Lake in a remote area of Lake County in eastern Oregon, United States. It was later incorporated into the Oregon Central Military Wagon Road which was completed in 1872. The wagon road eventually became the subject of scandal and litigation ending with a United States Supreme Court decision in 1893. The Stone Bridge and the Oregon Central Military Wagon Road were listed together on the National Register of Historic Places in 1974. Today, the Stone Bridge is located on land claimed by the State of Oregon under riparian rights. The wagon road adjacent to the Stone Bridge is owned by the United States Government and is administered by Bureau of Land Management.
Burnside Street is a major thoroughfare of Portland, in the U.S. state of Oregon, and one of a few east–west streets that runs uninterrupted on both sides of the Willamette River. It serves as the dividing line between North Portland and South Portland. Its namesake bridge, Burnside Bridge, is one of the most heavily traversed in Portland. In Gresham between approximately the east 18300 block to Mt. Hood Hwy, Burnside runs southeast–northwest and is no longer the divide between northeast and southeast on the City of Portland-Multnomah County street grid. Additionally, SE Burnside St becomes NW Burnside Road at SE 202nd/NW Birdsdale Ave, and NE Burnside Rd at N Main Ave in Gresham. Burnside Road's eastern terminus is where it meets Mt. Hood Hwy (US-26), E Powell Blvd (US-26), and SE Powell Valley Road.
Cornell Road is an east–west street and traffic corridor in the Portland metropolitan area, in Multnomah and Washington counties in the U.S. state of Oregon. It crosses the Tualatin Mountains between the Willamette Valley and the city of Portland on the east and the Tualatin Valley and the city of Hillsboro on the west.
