Chestnut Hill Conservancy, in partnership with Friends of the Wissahickon, acquired a conservation easement to preserve more than eight acres of open watercourse in Chestnut Hill. The conserved area is located near the headwaters of East Brook, which feeds Swan Pond at Morris Arboretum and is a tributary of Wissahickon Creek.

This area is one of the very few remaining stream valleys in Philadelphia with an intact watercourse, interrupted only by road crossings. The valley and stream that runs through it are important natural resources in Chestnut Hill, contributing to the ecological health of the neighborhood and the Wissahickon watershed. The easement protects the property from development and ensures that it will remain a forested vegetative stream buffer in perpetuity.