The Silver and Sleepy Hollow Creeks Watershed Coalition

  • watershed planning committee
    Community Members discuss watershed planning priorities.

Beginning in 2010, community members have gathered in Crystal Lake to discuss new opportunities to address water resource protections in eastern McHenry County. Local residents, community leaders, non-profit organizations, representatives of local governments,  businesses and others discussed priorities for protecting streams, lakes, groundwater and other natural resources.

Community members have been meeting to identify priority goals and to develop plans designed to protect water resources in the Silver Creek and Sleepy Hollow Creek watersheds of eastern McHenry County.

This “watershed planning” process is a comprehensive, community supported approach to improving water quality, considering groundwater protection, and restoring healthy aquatic communities on a watershed basis. Watershed planning provides opportunities for community members from multiple jurisdictions to work together and develop solutions to shared water resource challenges.

A plan has been developed for each watershed. The Silver Creek and Sleepy Hollow Creek watersheds are home to significant natural resources including dedicated Illinois Nature Preserves, rare fens, and several lakes enjoyed by community members as a source of recreation.

The Defenders and other participating organizations are working with local community members to implement the watershed plans that consider local priorities and concerns. If you live, work, or play in the Silver Creek or Sleepy Hollow Creek watersheds, please consider attending a meeting.

Click HERE to view the plan.

Stream assessment results click here

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What is a Watershed?

A watershed is an area of land that drains water into a common receiving body or outlet such as a stream. Watershed boundaries are defined by nature and are largely determined by the topography or “lay of the land.”


Where Are the Watersheds?

Sleepy Hollow Creek Watershed (Includes Sleepy Hollow Creek and one other Fox River tributary stream)

Silver Creek Watershed (Includes Silver Creek and other Fox River tributary streams)


Communities within the planning areas include Oakwood Hills, Prairie Grove, and portions of Bull Valley, Cary, Crystal Lake, and McHenry.

Portions of Nunda Township, Algonquin Township and unincorporated McHenry County are also within the planning areas.

Contact the Defenders below to get involved!

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