Fishing at Henrys Lake, Fremont County, Idaho

• Overview

  Idaho holds Henrys Lake, in Fremont County. The bank is 6,480 feet above sea level. It covers about 9.7 sq miles, which means weather matters as much as tactics. The perimeter runs near 15 miles, so plan the walk before you start. On our Fremont County list it sits near the top for size. West Yellowstone lies 15 miles from the water. Further out sit Ashton (39 miles) and Big Sky (44 miles). One jurisdiction covers this water end to end.

• Where to Fish on Henrys Lake

  Depth figures are not published for this one. Points where the flooded channel swings in are the reliable ones. The old creek line under the surface is the feature worth finding. Reported across Fremont County: rainbow trout, cutthroat trout and brook trout. Protected fish appear in the records for this area, so treat the list as information, not an invitation. Henrys Lake gives up more to patience than to distance.

• Seasonal Patterns

  Long-run averages give July about 59°F and January about 14°F. Winter shuts the surface down for months. Ice fishing carries the winter, and the water opens about early May. The season between ice runs from about early May to mid November. The first weeks of open water and the last are the ones to plan for. Henrys Lake runs to that rhythm year in and year out.

• Tackle & Baits

  We have no record of the rules that apply on this bank. Mapping records no facilities at all near this water. Trout here take small spinners, spoons and, where fly water allows, a nymph or dry. A landowner's word beats anything printed elsewhere. Signs go up and come down, so check on the day. Lake Marie, 6.6 miles away, makes the obvious fallback. Where Henrys Lake is concerned, a local answer beats a written one.