#1 a broad stone arch with rock pinnacles in the distance

Canyonlands National Park

UT · 818K visitors/yr

Moderate Crowds

The Needles District's cairn routes and The Maze's slot canyons demand navigation skills most parks don't require. You'll carry water between sources days apart and scramble ledges where a wrong turn costs hours.

#2 Aerial view of the Alatna River as it winds through a valley

Gates Of The Arctic National Park & Preserve

AK · 11,907 visitors/yr

Room to Breathe

No trails exist because the Brooks Range doesn't need them. You'll follow caribou routes through valleys where river crossings and weather decisions separate prepared backpackers from rescued ones.

#3 Large mountains dotted with snow loom above a rocky meadow filled with yellow flowers.

Glacier National Park

MT · 3.2M visitors/yr

Comfortable

Seven hundred miles of trail include routes like Gunsight Pass where you gain elevation equal to stacking the Empire State Building three times. Grizzly country adds a layer most alpine parks skip.

#4 View from above the trees looking down at Duncan Bay Narrows, trees, Lake Superior, and Canada.

Isle Royale National Park

MI · 28,806 visitors/yr

Room to Breathe

Greenstone Ridge and Minong Ridge demand twenty-eight miles of commitment across an island where the ferry schedule sets your exit date. Rocky shorelines and exposed ridges separate casual hikers from distance-ready backpackers.

#5 boats on the water with mountains and trees surrounding

North Cascades National Park

WA · 16,485 visitors/yr

Room to Breathe

Three hundred glaciers carve terrain where routes like Mount Shuksan demand scrambling skills and Cascade Pass leads to backcountry most never attempt. The North Cascades Highway closes half the year for a reason.

#6 A triangular sandstone mountain overlooks green and yellow foliage. A cloudy blue sky is overhead.

Zion National Park

UT · 4.9M visitors/yr

Very Crowded

Angels Landing's chain section and The Narrows' chest-deep wades draw crowds, but routes like Observation Point via East Mesa deliver elevation gain that matches the Burj Khalifa's height without the spectators.

#7 Blooming Cenizo

Big Bend National Park

TX · 561K visitors/yr

Comfortable

Emory Peak climbs through desert where summer temperatures reach levels that close trails. The Chisos Mountains reward those who start before dawn and carry twice the water they think they need.

#8 a white colored sheep standing on a mountainside overlooking a green valley

Denali National Park & Preserve

AK · 466K visitors/yr

Comfortable

Denali's backcountry units allow off-trail hiking where you navigate by topography and weather windows. Grizzlies, river crossings, and the Alaska Range's scale filter casual hikers at the trailhead.

#9 The canyon glows orange as people visit Mather Point, a rock outcropping that juts into Grand Canyon

Grand Canyon National Park

AZ · 4.9M visitors/yr

Moderate Crowds

Bright Angel Trail drops a vertical mile to the Colorado River, and most attempt it without training for the climb back. Rim-to-rim routes separate day hikers from those who understand desert elevation.

#10 Backpackers in North Fork Cascade Canyon, Grand Teton behind

Grand Teton National Park

WY · 3.6M visitors/yr

Busy

The Teton Crest Trail climbs past thirteen peaks topping twelve thousand feet. Routes like Grand Teton demand alpine experience where weather changes faster than most summits allow.

Frequently Asked Questions

Which national park has the most challenging backcountry trails?
Gates of the Arctic offers unmarked wilderness routes where you navigate entirely by terrain. No maintained trails, no signage. Canyonlands and Isle Royale follow close behind with multi-day routes requiring route-finding skills.
What's the best park for high-altitude hiking?
North Cascades delivers sustained elevation gain on routes like Cascade Pass and Sahale Arm. Glacier offers comparable climbs across the Continental Divide, with passes topping out above the treeline.
Can experienced hikers find solitude in popular parks?
Canyonlands' Maze District and Isle Royale's western shore see fewer than a hundred visitors most days. North Cascades absorbs crowds across hundreds of miles of backcountry trails.
Which parks require technical climbing skills?
Gates of the Arctic demands river crossings and off-trail navigation through tundra and scree. The others reward strong conditioning and backcountry experience but don't require ropes or ice axes.