Henry's Lake, Idaho — Fishing, Camping & Things to Do Near Island Park

Henry's Lake: Island Park's Trophy Fishing Destination

Henry's Lake sits at 6,472 feet elevation in a stunning mountain valley just north of Island Park, Idaho — about 15 minutes from the Last Chance/Island Park corridor and 30 minutes from the West Yellowstone entrance to Yellowstone National Park. The lake is famous among anglers worldwide for its trophy-sized hybrid cutthroat-rainbow trout, with fish regularly exceeding 5 pounds and occasional catches surpassing 10 pounds.

Fishing on Henry's Lake

Henry's Lake is a shallow, nutrient-rich lake that produces exceptionally large trout relative to its modest size (~6 miles long). The shallow depth means fish are concentrated and accessible even to intermediate anglers — but fooling them with the right presentation requires skill.

Season and Regulations:

• The lake opens for fishing in late May (exact date set annually by Idaho Fish and Game) and remains productive through September
• Brook trout season typically opens later — check current IDFG regulations
• Special regulations apply: barbless hooks, catch-and-release periods, and species-specific limits vary by year

Best Fishing Methods:

• Float tubes: The most popular and productive method. Float tubes let you access weed beds and drop-offs where trophy fish cruise. Early morning before wind builds is prime.
• Small boats: Aluminum boats and small inflatables work well. The lake has a public boat ramp on the north shore and a state park launch on the west shore.
• Shore fishing: Possible but significantly less productive. The best shoreline access is along the state park campground.

Target Species:

• Yellowstone cutthroat trout (native)
• Brook trout
• Cutthroat-rainbow hybrids — the lake's signature trophy fish, known for explosive fights and vibrant coloring

Best Months: June (post-opening adrenaline, hungry fish) and September (pre-winter feeding, fewer anglers, spectacular fall colors surrounding the lake).

Camping Near Henry's Lake

The Henry's Lake State Park campground occupies a prime location on the lake's west shore with direct water access. Sites include electric hookups, a boat ramp, and a fish cleaning station. The campground typically fills on summer weekends — reservations through Idaho State Parks are essential for July and August.

Additional camping options in the area:

• Dispersed camping on surrounding Caribou-Targhee National Forest land (free, no facilities)
• Private campgrounds along the US-20 corridor between Island Park and West Yellowstone
• Cabin rentals throughout the Island Park/Henry's Lake area — see our Best Cabin Rentals Near Yellowstone guide

Beyond Fishing: Things to Do at Henry's Lake

Wildlife viewing: The Henry's Lake area supports moose, osprey, bald eagles, sandhill cranes, and white pelicans. The lake's shallow marshy edges are excellent birding habitat, especially in spring and fall migration.

Photography: The Centennial Mountains form the backdrop to the east, creating dramatic sunrise compositions reflected in calm morning water. Fall aspen color (late September) transforms the surrounding hillsides into gold.

Scenic loop: Henry's Lake is on the route between Island Park and the Mesa Falls Scenic Byway — combine both in a full day trip with a morning ATV tour from Island Park.

The Perfect Henry's Lake Day Trip

A popular itinerary for families staying in the Island Park or West Yellowstone area:

1. Morning: Guided ATV tour with Nomad Yellowstone (departing from Island Park, 2–3 hours)
2. Afternoon: Drive to Henry's Lake (15 minutes from Island Park) for fishing or lakeside relaxation
3. Evening: Dinner in West Yellowstone (30 minutes from Henry's Lake)

This combination gives you backcountry adventure, lake leisure, and town dining in a single day — with zero Yellowstone entrance fees or traffic.

More Island Park travel tips → Things to Do in Island Park, Idaho · Camping Near Island Park · Where to See Moose Near Island Park

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