Department of Environmental Conservation

D E C banner

Union Falls Flow

This body of water was formed by an Adirondack entrepreneur named Paul Smith as a hydroelectric power generator. Union Falls Flow is an impoundment on the Saranac River and lies immediately downstream of Franklin Falls Flow. Most of the flow is shallow and rocky, making navigations difficult for outboard motors. The Flow water is stained darkly brown, which doesn't help in spotting rocks.

Physical Features:

Elevation: 1411 feet
Area: 1672 acres
Shoreline Length: 18.4 miles
Length: ~5.3 miles
Maximum Depth: 25 feet
Maximum Width: 1 mile


There is an informal beach/hand launch on the north end of the lake off of the Union Falls Road. There are rocks at the launch that can make launching a boat difficult.

Fish Species:

Walleye, northern pike, yellow perch, pumpkinseed, smallmouth bass, brown bullhead, largemouth bass, fallfish, and rock bass


The flow is actually a reservoir and has numerous stumps on the bottom. Try finding the old river channel to help you find the fish. Walleye and yellow perch fishing is the most popular. A 2009 fisheries survey found smallmouth were very abundant, and there were also numerous average sized panfish.


Special fishing regulations apply (leaving DEC website to official Fishing Regulations Guide vendor website)

Fisheries Management:

The flow was last stocked with walleye fry in 2006. Walleye are naturally reproducing.