Tiger Mountain is a mountain in the U.S. state of Washington. It is at the center of the Issaquah Alps, a small range in the Eastside region of King County, Washington southeast of Seattle. The mountain is part of a designated protected area, the Tiger Mountain State Forest, and has several recreational areas used for hiking, mountain biking, and paragliding.

Interstate 90 (I-90), designated as the American Veterans Memorial Highway, is a transcontinental Interstate Highway that runs from Seattle, Washington, to Boston, Massachusetts. It crosses Washington state from west to east, traveling 298 miles (480 km) from Seattle across the Cascade Mountains and into Eastern Washington, reaching the Idaho state line east of Spokane. I-90 intersects several of the state's other major highways, including I-5 in Seattle, I-82 and U.S. Route 97 (US 97) near Ellensburg, and US 395 and US 2 in Spokane.