Other environmental and historical organizations and agencies which we support:

• Alliance for the Chesapeake Bay
• Baltimore County Department of Environmental Protection and Resource Management
• Catonsville Historical Society
  
• Chesapeake Bay Foundation
• Chesapeake Bay Trust
• Ellicott City Restoration Foundation
• Friends of Patapsco Valley State Park
  
• Historic Ellicott City
• Howard County Council of Garden Clubs
• Howard County Department of Public Works Bureau Of Environmental Services
• Howard County Historical Society
• Howard County Conservancy
• Parks and People (Baltimore City)
• Patapsco Valley State Park
• Patapsco Back River Tributary Team
• Preservation Howard County
• Rockburn Land Trust
• Tiber Hudson Watershed Committee