- Gifford Pinchot National Forest is a National Forest located in southern Washington, managed by the United States Forest Service. With an area of 1.32 million acres (5,300 km2), it extends 116 km (72 mi) along the western slopes of Cascade Range from Mount Rainier National Park to the Columbia River. The forest straddles the crest of the South Cascades of Washington State, spread out over broad old-growth forests, high mountain meadows, several glaciers, and numerous volcanic peaks. The forest’s highest point is at 12,276 ft (3,742 m) at the top of Mount Adams, the second-tallest volcano in the state after Rainier. Often found abbreviated GPNF on maps and in texts, it includes the 110,000-acre (450 km2) Mount St. Helens National Volcanic Monument, established by Congress in 1982.
- Interstate 90 (en.wikivoyage.org)
Interstate 90 (I-90) is a United States interstate highway that starts in Seattle, Washington and runs 3,021 mi (4,862 km) east through the states of Washington, Idaho, Montana, Wyoming, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Ohio, Pennsylvania, New York and Massachusetts in the East Coast in Boston. It serves as an important northern tier transcontinental highway across the Pacific Northwest, Rocky Mountains, Great Plains, the Midwest and the northeastern U.S. connecting the major cities of Seattle, Spokane, Coeur d’Alene, Missoula, Billings, Sheridan, Gillette, Sioux Falls, Albert Lea, La Crosse, Tomah, Madison, Wisconsin; Rockford, Elgin, Chicago, Sandusky, Cleveland, Erie, Buffalo, Rochester, Syracuse, Albany, Worcester and Boston; and the four state capitals of South Dakota (Pierre); Wisconsin (Madison), New York (Albany), and Massachusetts (Boston). It is the longest transcontinental interstate highway across the United States.