The exact origin of the name Hopatcong is unknown, though it is most commonly attributed to the Lenape Indian word for "stone water," or "stone over water". Some linguists believe "Hopatcong" to be a derivative o… See more

Before the last ice age, the waters of the prehistoric Hopatcong basin fed into the Raritan River. The glacier that shaped much of the New Jersey Highlands formed a long terminal moraine that forced water from the basin in… See more

The Lenape Indians discovered the area of Lake Hopatcong about 12,000 years ago. They settled near the Great Pond and Little Pond, which provided abundant fish and forested shores with ample game. The waters bec… See more

Lake Hopatcong is now mostly a residential lake whose few public access points include Hopatcong State Park and Lee's County Park Marina. Most of the shoreline is privately owned by individual lakefront residents, h… See more

Lake Hopatcong is shared by two counties (Sussex and Morris) and four boroughs and townships (Mount Arlington, Hopatcong, Jefferson Township, and Roxbury Township).
At some po… See more