The Mountains to Sound Greenway is a 1.5 million-acre landscape situated in the

Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though ...

. On March 12, 2019, it was designated a

National Heritage Area In the United States, a National Heritage Area (NHA) is a site designated by Act of Congress, intended to encourage historic preservation of the area and an appreciation of the history and heritage of the site. There are currently 62 NHAs, some ...

, to be managed by the Mountains to Sound Greenway Trust, as part of the

John D. Dingell Jr. Conservation, Management, and Recreation Act The John D. Dingell Jr. Conservation, Management, and Recreation Act of 2019 is an omnibus lands act that protected public lands and modified management provisions. The bill designated more than of wilderness area, expanded several national par ...

. In 1998, it became the first

National Scenic Byway A National Scenic Byway is a road recognized by the United States Department of Transportation for one or more of six "intrinsic qualities": archeological, cultural, historic, natural, recreational, and scenic. The program was established by Co ...

to be designated in Washington. Mountains to Sound Greenway, Washington, US

The corridor stretches along

Interstate 90 Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at . It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and ...

between

Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...

and

Ellensburg Ellensburg is a city in and the county seat of Kittitas County, Washington, United States. It is located just east of the Cascade Range near the junction of Interstate 90 and Interstate 82. The population was 18,666 at the 2020 census. and was ...

, following several historic transportation routes and a network of bicycling and hiking trails. Its formal boundaries are along several watersheds: the Yakima to the east, the Cedar to the south, Snoqualmie and

Lake Washington Lake Washington is a large freshwater lake adjacent to the city of Seattle. It is the largest lake in King County and the second largest natural lake in the state of Washington, after Lake Chelan. It borders the cities of Seattle on the west, ...

to the north, and

Puget Sound Puget Sound ( ) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected ma ...

to the west. The Greenway was first envisioned in 1990, when a group of citizens hiked from the Cascade Crest alongside Interstate 90. In 1991, the Mountains to Sound Greenway Trust was founded to prevent the encroachment of

urban sprawl Urban sprawl (also known as suburban sprawl or urban encroachment) is defined as "the spreading of urban developments (such as houses and shopping centers) on undeveloped land near a city." Urban sprawl has been described as the unrestricted growt ...

on the natural areas near Snoqualmie Pass and to use them to connect Seattle and Central Washington. Its creation has been criticized for attracting public funds that could have been used on other ecological protection projects.

References

External links

Mountains to Sound Greenway Trust
official website for local coordinating entity
Guide to the Mountains to Sound Greenway Trust Records 1993-2016
{{Coord, 47.41, -121.38, display=title Nature conservation in the United States Non-profit organizations based in Seattle Environmental organizations based in Washington (state) National Heritage Areas of the United States