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Madison County, Near Ennis
The Madison Valley is a wide, sweeping trench flanked by the dramatic peaks of the Madison Range to the east and the Gravelly Range to the west. The Madison River winds through the valley floor, eventually widening into Ennis Lake. This combination of riverine habitat, shallow lake, and expansive sagebrush benches creates one of the most productive birding areas in the region.
Ennis Lake is a recognized Important Bird Area, particularly vital for its population of Trumpeter Swans, which can be found here year-round. The shallow, warm waters of the lake produce massive insect hatches, which in turn draw thousands of swallows, Franklin's Gulls, and migrating shorebirds. The river corridor above the lake is prime habitat for American Dippers, which walk underwater in the fast current to hunt aquatic insects. On the dry benches above the river, the Greater Sage-Grouse still performs its ancient courtship displays in the spring.
Visitor Access
Access to Ennis Lake is available through several public points, including Montana FWP fishing access sites and BLM lands. Entry to these sites is generally free. There are no developed walking trails around the lake, but birding can be done from the access points or by non-motorized boat. The surrounding valley roads offer excellent auto-touring for raptors and grassland birds. The town of Ennis provides ample lodging and services.