Ennis Lake is a man-made body of water in southwestern Montana’s Madison County. It was formed in 1905 as a result of the Madison Dam ’s construction on the Madison River, at the head of Bear Trap Canyon.

The building of Madison Dam on the Madison River formed Ennis Lake. This 4800-acre lake is quite shallow and often gets very warm during the height of summer, which limits trout populations and can hinder fishing. The lake itself essentially divides the Madison River.

Formed by a dam on the Madison River, Ennis Lake is a locals’ and tourists’ favorite for water sports, fishing, and wildlife watching. Select from rental homes and cabins around the Ennis Lake and the Madison Valley, many with riverfront locations. All …

Very shallow shoreline; boat ramp available at BLM site Kobayashi Beach. 6 miles north of Ennis on Hwy 287 to milepost 55 at McAllister, MT, turn right onto North Ennis Lake Road, then east 2 miles. Click on rows to select them for use in other tabs. This is a preview, all fields will be visible by selecting a download option.

Escape to Ennis Lake in one of our unique RV sites featuring spacious grounds and lake views. Experience the ultimate lakefront getaway with our collection of cabins at Ennis Lake. Embark from the marina to explore Lake Ennis on paddle board, kayak, or boat.

Ennis Lake was formed when a dam was built on the Madison River at the head of the Bear Trap Canyon. The lake is shallow meaning the water is warm, just right for morning water sports and windsurfing in the windy afternoon.

Approximately 12 miles (19 km) north of town, the Madison Dam creates Ennis Lake at the head of Bear Trap Canyon. According to the U.S. Census Bureau, the town has a total area of 0.74 square miles (1.92 km 2), of which 0.001 square miles (0.00 km 2), or 0.14%, are water. [2] .