Clackamas County, Oregon in the context of List of counties in Oregon

Mount Hood, also known as Wy'east, is an active stratovolcano in the Cascade Range and is a member of the Cascade Volcanic Arc. It was formed by a subduction zone on the Pacific Coast and rests in the Pacific Northwest region of the United States. It is located about 50 miles (80 km) east-east-southeast of Portland, on the border between Clackamas and Hood River counties, and forms part of the Mount Hood National Forest. Much of the mountain outside the ski areas is part of the Mount Hood Wilderness. With a summit elevation of 11,249 feet (3,429 m), it is the highest mountain in the U.S. state of Oregon and is the fourth highest in the Cascade Range. Ski areas on the mountain include Timberline Lodge ski area which offers the only year-round lift-served skiing in North America, Mount Hood Meadows, Mount Hood Skibowl, Summit Ski Area, and Cooper Spur ski area. Mt. Hood attracts an estimated 10,000 climbers a year.

The peak is home to 12 named glaciers and snowfields. Mount Hood is considered the Oregon volcano most likely to erupt. The odds of an eruption in the next 30 years are estimated at between 3 and 7%, so the U.S. Geological Survey (USGS) characterizes it as "potentially active", but the mountain is informally considered dormant.

Mirror Lake is a mountain lake in Clackamas County of the U.S. state of Oregon. It is located at the foot of Tom Dick and Harry Mountain in a natural catchment formed by a toe of the mountain, 11.4 kilometres (7.1 mi) southwest of Mount Hood, and 3.1 kilometres (1.9 mi) WSW of Government Camp within Mount Hood National Forest.

It is among the most popular day hikes in the Mount Hood area, and a popular Nordic skiing destination. Its 400-foot (120 m) elevation gain in 1.9 miles (3.1 km) is considered an easy hike.

Lake Oswego (/ɒsˈwiːɡoʊ/ oss-WEE-goh) is a city in the U.S. state of Oregon, primarily in Clackamas County, with small portions extending into neighboring Multnomah and Washington counties. Population in 2020 was 40,731, an 11.2% increase since 2010, making it the 11th most populous city in Oregon. Located about 7 miles (11 km) south of Portland and surrounding the 405-acre (164 ha) Oswego Lake, the town was founded in 1847 and incorporated as Oswego in 1910. The city was the hub of Oregon's brief iron industry in the late 19th century, and is today a suburb of Portland.

The Tri-County Metropolitan Transportation District of Oregon, branded as TriMet, is a transit agency that serves most of the Oregon part of the Portland metropolitan area. Created in 1969 by the Oregon legislature, the district replaced five private bus companies that operated in the three counties: Multnomah, Washington, and Clackamas. TriMet began operating a light rail system, MAX, in 1986, which has since been expanded to five lines that now cover 59.7 miles (96.1 km). It also operates the WES Commuter Rail line since 2009. It also provides the operators and maintenance personnel for the city of Portland-owned Portland Streetcar system. In 2024, the system had a ridership of 66,876,200, or about 202,800 per weekday as of the third quarter of 2025.

In addition to rail lines, TriMet provides the region's bus system, as well as LIFT paratransit service. There are over 650 buses on 79 lines as of September 2025. In 2018, the entire system averaged 310,000 rides per weekday and operates buses and trains between the hours of approximately 5 a.m. and 2 a.m. TriMet's annual budget for FY 2018 is $525.8 million, with 30% of resources coming from a district-wide payroll tax and 10% from fares. The district is overseen by a seven-person board of directors appointed by the state's governor. As of 2022, the agency has around 3,428 employees.

Tom Dick and Harry Mountain is a 2-mile-long (3.2 km) volcanic mountain in Clackamas County in the U.S. state of Oregon. It is located 7.2 miles (11.6 km) southwest of Mount Hood, 1.9 miles (3.1 km) west-southwest of Government Camp between the Zigzag River and Still Creek, south of Zigzag Mountain. Because of its proximity to Mount Hood, it is considered a foothill.

The mountain is named for its three distinct peaks along the summit, forming the cirque that is now part of the Mount Hood Skibowl ski resort.The highest peak has an elevation of 5,070 feet (1,545 m). The name was in use as early as 1897, according to Elijah "Lige" Coalman, the namesake of Coalman Glacier. The mountain has also been called "Tom Dick Mountain" in the past, although the Board on Geographic Names officially decided in favor of including "Harry" in 1969, making the mountain's name a play on the phrase "Tom, Dick and Harry". It has frequently been noted on lists of unusual place names.

Government Camp // is an unincorporated community and census-designated place located in Clackamas County, Oregon, United States, on the base of Mount Hood and north of Tom Dick and Harry Mountain. It is the only town within 5 miles (8 km) of Mount Hood and therefore is the de facto "mountain town" or "ski town". It is the gateway to several ski resorts, with the most popular being Timberline Lodge and Mount Hood Skibowl. Government Camp also has its own, smaller ski resort, Summit Pass.

The community is located within the Mount Hood Corridor on U.S. Route 26 (the Mount Hood Highway), near its intersection with Oregon Route 35 and the Barlow Pass summit of the Cascade Range. As of the 2010 census, the community had a population of 193. The government's 2016 estimate indicated a population of 121 persons.

The Portland metropolitan area is a metro area with its core in the U.S. states of Oregon and Washington. It has 5 principal cities, the largest being Portland, Oregon. The U.S. Office of Management and Budget (OMB) identifies it as the Portland–Vancouver–Hillsboro, OR–WA Metropolitan Statistical Area, a metropolitan statistical area used by the United States Census Bureau (USCB) and other entities. The OMB defines the area as comprising Clackamas, Columbia, Multnomah, Washington, and Yamhill Counties in Oregon, and Clark and Skamania Counties in Washington. The area had a population of 2,512,859 at the 2020 census, an increase of over 12% since 2010.

The Oregon portion of the metropolitan area is the state's largest urban center, while the Washington portion of the metropolitan area is the state's third-largest urban center after Seattle and Spokane (the Seattle Urban Area includes Tacoma and Everett). Portions of the Portland metro area (Clackamas, Multnomah, and Washington Counties) are under the jurisdiction of Metro, a directly elected regional government which, among other things, is responsible for land-use planning in the region.