The Ridge Motorsports Park

Washington Corrections Center is a Washington State Department of Corrections men's prison located in Shelton, Washington. With an operating capacity of 1,300, it is the sixth largest prison in the state (after Stafford Creek Corrections Center) and is surrounded by forestland. It opened 60 years ago in 1964, seventy-five years after statehood.Washington Corrections Center is located at 2321 W Dayton Airport Rd

Ink Blot Natural Area Preserve is a Washington state Natural Area Preserve located in Mason County. The preserve totals 153 acres (62 ha), mostly wetlands and Sphagnum bogs in three parallel glacier-formed basins.The preserve was created in 2010 with a purchase by the State of Washington from a private landowner.

Shelton High School is a senior high school located in Shelton, Washington. Shelton High School is a class 2-A high school and was restructured starting with the 2004–2005 school year to be a Grade 10-12 High School. More than 1600 students, grades 9–12, are enrolled at SHS. Built in 1975, it replaced Irene S. Reed High School, Shelton's first high school.

Washington's 35th legislative district is one of forty-nine districts in Washington state for representation in the state legislature. It covers all of Mason County, and parts of Thurston and Kitsap counties. The district's legislators are state senator Drew MacEwen (R) and state representatives Dan Griffey (R; position 1) and Travis Couture (R; position 2). The previous Senator, Tim Sheldon stated in March 2022 that he did not intend to run for reelection in the next cycle. MacEwen, who previously served as Representative in Position 2, ran for and was elected in November 2022 to replace Sheldon in the Senate.

The Skokomish (pronounced ) are one of nine tribes of the Twana, a Native American people of western Washington state in the United States. The tribe lives along Hood Canal, a fjord-like inlet on the west side of the Kitsap Peninsula and the Puget Sound basin. Historically the Twana were hunters, fishers, and gatherers who had a nomadic lifestyle during the warmer months, while living in more permanent homes during the winter months. Today, Skokomish people are enrolled in the federally recognized Skokomish Indian Tribe. Like many Northwest Coast indigenous peoples, the Skokomish rely heavily on fishing for their survival.

The Skokomish Indian Tribe, formerly known as the Skokomish Indian Tribe of the Skokomish Reservation, and in its own official use the Skokomish Tribal Nation, is a federally recognized tribe of Skokomish, Twana, Klallam, and Chimakum people. They are a tribe of Southern Coast Salish indigenous people of the Pacific Northwest located in Washington. The Skokomish are one of nine bands of Twana people.

Shelton is a city in and the county seat of Mason County, Washington, United States. Shelton is the westernmost city on Puget Sound. The population was 10,371 at the 2020 census. Shelton has a council–manager form of government and was the last city in Washington to use a mayor–commission form of government.

Mason County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 65,726. The county seat and only incorporated city is Shelton. The county was formed out of Thurston County on March 13, 1854. Originally named Sawamish County, it took its present name in 1864 in honor of Charles H. Mason, the first Secretary of Washington Territory.Mason County comprises the Shelton, WA Micropolitan Statistical Area and is included in the Seattle-Tacoma, WA Combined Statistical Area.

The Simpson Logging Company Locomotive No. 7 (also known as "Tollie") and Peninsular Railway Caboose No. 700 are a locomotive and caboose in Shelton, Washington. Together they have been listed on the National Register of Historic Places since 1984. The locomotive, plus a flatbed log car carrying several large logs, and the caboose form a train, set up appear as if just arrived from the woods, on Railroad Avenue in front of Shelton's U.S. Post Office. Both the locomotive and the caboose served the Simpson Logging Company. In 1887, Sol G. Simpson moved to Mason County, Washington with his family. He found a job laying rails and railroad ties for Port Blakely Mill Company. In 1890, he established the S. G. Simpson Company in Matlock, Washington; two of his brothers worked for the company. In 1925, the company opened the Reed sawmill, in Shelton, Washington. "Tollie", a Shay locomotive, was built in 1924 by the Lima Machine Works. Caboose No. 700 was built in Shelton by the Peninsular Railway in the 1920s, which it served until 1936. After that it served the Simpson Logging Company. It had a large side door like a box-car would, and was used to transport supplies to logging camps. It was retired in 1965 and was brought to Shelton in 1983. The caboose's interior was remodeled to serve as the Shelton Mason County Chamber of Commerce. The two cars are linked together and are situated in downtown Shelton between 2nd and 3rd Street on a narrow parcel of land that belonged to the Logging Company railroad. Both the locomotive as well as the caboose have sustained their original integrity and are positioned on the original right of way for the railroad.

Amelia is a ghost town in Mason County, in the U.S. state of Washington.A post office called Amelia was established in 1895, and remained in operation until 1901. Amelia Edmonds, an early postmaster, gave the community her name.

Potlatch State Park is a 57-acre (23 ha) Washington state park located on Hood Canal near the town of Potlatch in Mason County. The park offers camping, hiking, boating, fishing, shellfish harvesting, beachcombing, and sailboarding.

The Skokomish River (Twana: squʔquʔ) is a river in Mason County, Washington, United States. It is the largest river flowing into Hood Canal, a western arm of Puget Sound. From its source at the confluence of the North and South Forks the main stem Skokomish River is approximately 9 miles (14 km) long. The longer South Fork Skokomish River is 40 miles (64 km), making the length of the whole river via its longest tributary about 49 miles (79 km). The North Fork Skokomish River is approximately 34 miles (55 km) long. A significant part of the Skokomish River's watershed is within Olympic National Forest and Olympic National Park.