Fishing in Black Canyon of the Gunnison National Park

The Gunnison River cuts through one of the deepest canyons in North America, and the stretch running through Black Canyon of the Gunnison National Park carries some of the most demanding — and most rewarding — trout water in Colorado.

The river here holds Gold Medal and Wild Trout designations, a status shared by only 362 miles of Colorado's more than 9,000 miles of trout streams.

That designation shapes everything about fishing inside the park: the regulations, the fish, and the effort required to reach the water. Rainbow and brown trout are the two species anglers will encounter. Both run large.

Rainbows are catch-and-release only inside the park; browns have a daily bag limit, though you should check current Colorado Parks and Wildlife regulations for specifics. Artificial flies and lures only — no bait. A Colorado fishing license is required.

Guided fishing trips are not permitted inside the park; any outfitter offering to take you in is operating illegally. Access is the defining feature of fishing here, and it's worth being honest about.

The canyon walls drop sharply, and the routes down are steep, unmaintained, and physically punishing in both directions.

East Portal Road is the only paved vehicle access to the river, reaching a limited stretch near Crystal Dam — note that the road is closed in winter and is off-limits to vehicles over 22 feet. Fishing is prohibited within 200 yards downstream of Crystal Dam.

The East Portal section consistently produces well and draws most of the angler traffic that does make it in. Red Rock Canyon, on the southwest side of the park in designated Wilderness, is a popular alternative route for anglers. The trail runs 3.

5 miles one-way and drops 1,300 vertical feet to the Gunnison River. Access requires a wilderness use permit. The route is not marked or maintained, stream crossings are common, and poison ivy is heavy on the lower section.

WAG bags for human waste are available at the trailhead. Once you're on the water, the fishing demands patience and precision. The fish in this canyon are wild, selective, and accustomed to low pressure — the hike filters out most casual visitors.

You're working boulders, reading tight seams, and adjusting to canyon light that arrives late and leaves early. Fall brings cooler water temperatures and more active fish through more of the day.

Side canyon flash flooding can push sediment into the river and change clarity section to section, so be ready to adjust. The canyon doesn't give the river up easily. That's the point.