Lakes in Montgomery County, Pennsylvania      Black Rock Lake Dove Lake Green Lane Reservoir Knight Lake Lake Delmont Lake Sanatoga Lock Alsh Reservoir Maple Run Reservoir Marklelys Pond Mermaid Lake Moreland Pond Schuylkill River Reservoir Sherry Lake Walden Pond OTHER COUNTIES NEARBY New Castle County Baltimore County Cecil County Harford County Camden County Cumberland County Gloucester County Hunterdon County Mercer County Salem County Somerset County Sussex County Warren County Berks County Bucks County Carbon County Chester County Columbia County Delaware County Lancaster County Lehigh County Luzerne County Monroe County Northampton County Philadelphia County Schuylkill County Pennsylvania Lakes