Black Canyon gets 33 minutes of sunlight a day and that’s exactly why you should go

Colorado’s darkest canyon doesn’t play by the rules

The Gunnison River has been cutting through western Colorado for two million years, and the canyon it left behind doesn’t look like anything else in the country. The walls aren’t just tall.

They’re so close together and so steep that sunlight barely reaches the bottom. Some sections get about 33 minutes of direct sun per day.

That’s it. The rock goes dark, the shadows go permanent, and the whole place takes on a mood that photographs don’t quite capture. You have to stand at the rim to understand it.

Rock that is 1.7 billion years old drops 40 feet wide at the river

The canyon isn’t long by canyon standards. The park protects 14 of the steepest and narrowest miles of a 48-mile stretch, and at its tightest point, the walls are just 40 feet apart at the river.

The Gunnison drops 34 feet per mile through here on average, and at Chasm View, it falls 240 feet per mile.

The rock the river cuts through is roughly 1.7 billion years old, some of the oldest exposed stone in North America. That darkness you see from the rim isn’t a trick of the light.

It’s almost always shade.

From a Ute homeland to a national park in 1999

The Ute people knew this canyon long before anyone else did. Captain John W. Gunnison, a military surveyor, came through in 1853 and gave the river its name.

The federal government made it a national monument in 1933, and on Oct. 21, 1999, it became a full national park. Today it covers about 30,750 acres.

It’s one of four national parks in Colorado, sitting in the same state as Rocky Mountain, Mesa Verde and Great Sand Dunes, though far fewer people seem to find their way here.

The Painted Wall stands taller than two Empire State Buildings

One wall along the South Rim rises 2,250 feet from the river to the top.

That makes the Painted Wall the tallest cliff in Colorado, about twice the height of the Empire State Building.

The name comes from streaks of pink and white pegmatite rock that run across the dark surface in long diagonal lines. They look like brushstrokes on a canvas.

Those veins formed when molten rock pushed into cracks deep underground and cooled slowly enough that some of the crystals grew up to six feet long.

You can see the Painted Wall from one of the easiest pullouts on the South Rim drive.

Drive seven miles and stop at 12 overlooks along the South Rim

The South Rim road runs seven miles with a dozen places to pull over and look in. Most people spend two to three hours on it.

Right behind the visitor center, Gunnison Point gives you your first real look into the canyon. Pulpit Rock shows you just how vertical those walls are.

Chasm View puts you directly above a section where the walls drop 1,820 feet to the river below. Dragon Point faces west along the river corridor, which makes it the go-to spot when the sun starts going down.

Warner Point and Oak Flat give two very different views

Warner Point Nature Trail runs about 1.5 miles round trip through pinyon pine and juniper forest, ending where you can see the canyon, the San Juan Mountains, and the Uncompahgre Valley spread out in front of you.

Interpretive signs line the path if you want context as you walk.

The Oak Flat Loop is about two miles round trip and dips just below the rim, which changes the angle and gives you a different sense of how the walls lean over the river. Bring water on both.

There’s almost no shade and the sun is relentless.

East Portal Road drops you straight to the Gunnison River

If you want to see the canyon from the bottom, East Portal Road is how you get there. It’s paved but steep, with a 16 percent grade and switchbacks tight enough that RVs and trailers can’t make it down.

At the bottom, you walk along the river and look straight up at walls that seem to close in around you.

Near the road, the historic Gunnison Tunnel cuts through the rock, part of a 1909 engineering project that diverts river water to the Uncompahgre Valley for farming.

The road closes in winter, so check conditions before you plan around it.

Cast a line in some of Colorado’s best trout water

Colorado’s state fisheries program designates the Gunnison River through the park as both Gold Medal Water and Wild Trout Water. That means the river holds a high number of large trout per mile, mostly rainbow and brown.

The rules are strict: artificial flies and lures only, and rainbow trout are catch-and-release. If you plan to hike into the inner canyon to fish, you’ll need a free wilderness permit before you go.

Late spring and summer bring strong insect hatches that pull trout to the surface, which is when most serious anglers time their visits.

See the Milky Way without a single streetlight in the way

In September 2015, Black Canyon of the Gunnison earned designation as an International Dark Sky Park. The park sits far enough from city lights, and the surrounding agricultural land keeps the horizon clean.

On a clear, moonless night, you can see thousands of stars and the full band of the Milky Way without a telescope. Rangers run astronomy programs, constellation tours and telescope viewing in summer and fall.

The park also hosts AstroFest each year with solar viewing and night sky talks. Download a star map before you arrive.

Cell service inside the park is essentially nonexistent.

Peregrine falcons nest on the cliffs every summer

Fifty-nine species of mammals and more than 170 species of birds live in and around the park. Mule deer show up regularly along the rim.

Bighorn sheep pick their way across the steep rocky slopes inside the canyon. Peregrine falcons, the fastest birds on Earth, nest on the canyon walls each summer.

Golden eagles, great horned owls and canyon wrens round out the bird list. Down at the river, river otters move through the canyon floor.

One more thing worth knowing: there are no venomous snakes in the park. Nighttime temperatures in the canyon stay too cold for them.

Fewer crowds and the park’s best viewpoint on the North Rim

The North Rim draws far fewer people and has a rougher, more remote feel. There’s no bridge between the rims, so driving from one side to the other takes two to three hours.

But if you make the trip, the North Vista Trail leads to Exclamation Point, which many people consider the single best viewpoint in the entire park.

From there, you look straight down the length of the Black Canyon.

The last few miles of North Rim Road are unpaved but manageable in a regular car when the road is open. It typically closes around mid-November and reopens in May.

A 2025 wildfire burned 80 percent of the South Rim

Lightning struck both rims on July 10, 2025. The South Rim Fire burned 4,232 acres and didn’t reach full containment until Sept. 18, 2025.

About 80 percent of the South Rim landscape burned, including most of the 88 campsites, several restrooms and other park structures. Some trees that had stood for hundreds of years were lost.

As of spring 2026, the South Rim scenic drive and all 12 overlooks are open again. The South Rim Campground and East Portal Campground remain closed.

The canyon itself is unchanged. The views from the rim are as powerful as they’ve ever been.

Plan ahead: the park is still rebuilding after the fire

The South Rim sits about 15 miles east of Montrose on U.S. Highway 50. Montrose Regional Airport is the closest place to fly in, about 25 miles from the park entrance.

The South Rim visitor center is the main hub, with canyon views right off the back deck. Pack more water than you think you’ll need.

Shade is scarce and the sun at this elevation hits hard. Check the NPS website before you go for current trail and road conditions.

Campground closures are ongoing and could shift as the park continues its recovery from the fire.

Visit Black Canyon of the Gunnison National Park in Colorado

You can start your visit at the South Rim Visitor Center, located at the end of South Rim Road off U.S. Highway 347, about 15 miles east of Montrose.

The park is open year-round, though North Rim Road and East Portal Road close in winter. Admission is $20 per vehicle and covers seven days.

The visitor center has maps, ranger staff and a small bookstore.

With the campgrounds still closed after the 2025 fire, plan to stay in Montrose, which has lodging, restaurants and everything you need before heading in.

This article was created with AI assistance and human editing.

Read more from this brand:

• Colorado’s coolest hike is an ancient canyon so dark, it makes the Grand Canyon look cheerful
• Where else can you stand inside a stone city built 700 years ago? Colorado has one
• Colorado sues the EPA for rejecting its clean air plan