Ganoga Lake, Glacial lake in Sullivan County, Pennsylvania, US
Ganoga Lake is a glacial lake in Sullivan County, Pennsylvania, formed during the last ice age. The water spreads across a broad basin surrounded by forested shores and reaches considerable depth in several spots.
The lake was originally called Robinson's Lake but was acquired by the Ricketts family in the 1850s and given new names over the following decades. These name changes reflected the changing ownership and development of the surrounding land.
The name Ganoga comes from the Seneca language, meaning "water on the mountain," which connects the lake to the Native American peoples who lived in this region. This connection to Indigenous heritage remains visible in how the place is known and remembered today.
The lake is open to recreational fishing and supports several fish species for anglers to pursue. Visitors should check local fishing regulations before casting a line and plan visits during stable weather conditions.
A historic hotel nearby called North Mountain House operated one of America's earliest summer schools on its grounds during the 1870s. This educational experiment brought students to the area for seasonal instruction, making it a notable learning destination of that era.
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