Hikers on Rattlesnake Mountain

Land Conservation

The Mountains to Sound Greenway National Heritage Area represents a national conservation success story. Motivated by local residents who staged the Mountains to Sound March from Snoqualmie Pass to Seattle in 1990, Greenway partners have worked together for decades to achieve a vision of accessible natural  spaces, livable communities, productive working lands, and incomparable scenic beauty.  

Conserving and connecting the natural landscape of the Greenway NHA takes extraordinary leadership from federal, state, and local elected officials and land management agencies. And it comes together piece by piece. Since 1990, nearly $500 million has been invested in more than 250 transactions to purchase or exchange 230,000 acres into public ownership, and an additional 100,000 acres have been preserved by conservation easement.  

 This work is not finished. Greenway partners must continue to look for opportunities to locate new trailheads, protect critical wildlife corridors, conserve forest inholdings,  and allow access to nature in communities where people live and work. And we must do this all while balancing the needs of economic growth and development.   


While it took hundreds of transactions to connect public lands, wildlife habitat, and recreation areas across the Greenway NHA, these are a few of the major transactions that conserved iconic places: 

land conservation map
  • 1993 Rattlesnake Mountain Scenic Area, 1800 acres; 1997 Rattlesnake Mountain Acquisition, 1100 acres; 2000 Snoqualmie Point, 130 acres
  • 1993 Squak Mountain expansion, 990 acres 
  • 1994 Meadowbrook Farm, 460 acres; 2001 Tollgate Farm, 380 acres 
  • 1997 Champion Exchange, 6720 acres 
  • 1999 I-90 Land Exchange, 31,900 acres 
  • 2001 Huckleberry Land Exchange, 15,547 acres within the Greenway 
  • 2001 Snoqualmie Preservation Initiative, 3450 acres 
  • 2004 Snoqualmie Forest, 90,000 acres conservation easement 
  • 1999-2009 The Cascades Conservation Partnership 
  • 2009 Raging River State Forest, 7000 acres 
  • 2013 Teanaway Community Forest, 50,272 acres 
  • 2014 The Nature Conservancy Forests for our Future, 41,507 acres 
  • 2019 Bergsma property, Issaquah 

To see the details of conservation transactions, check out this resource: Building the Mountains to Sound Greenway.