The Bentonite Bluffs: Hiking North Dakota's Colorful Hills

Underwood moderate Difficulty

The Bentonite Bluffs rise dramatically along Lake Sakakawea, offering hikers a rugged trail of steep climbs and vivid clay cliffs. Perfect for those seeking a hands-on adventure with stunning views, this hike balances physical challenge and natural beauty in North Dakota.

Trail Tips

Wear shoes with strong traction

The bentonite clay becomes slippery, especially after rain—opt for hiking boots or shoes with a grippy sole to maintain stable footing.

Bring at least 2 liters of water

The exposed terrain and dry conditions can quickly dehydrate you; carry more water than you think you’ll need to stay hydrated.

Start early to avoid midday heat

The open bluffs offer little shade, so beginning your hike in the morning keeps you ahead of the hottest part of the day.

Check weather conditions before heading out

Wind gusts can intensify near the lake and rain can turn the clay slippery and unsafe; plan accordingly for changing weather.

Activity Level

moderate Difficulty
2 to 3 hours round trip

Requires good cardiovascular fitness and lower body strength due to steep, uneven terrain.

Photography Tips

Best Times

early morning
late afternoon

Best Viewpoints

  • ridge line overlooking Lake Sakakawea
  • north-facing slopes for sunrise shots

The Bentonite Bluffs: Hiking North Dakota's Colorful Hills

Carved by ancient rivers and painted in muted pastels, the Bentonite Bluffs rise sharply along the eastern shore of Lake Sakakawea in North Dakota. These hills don't just stand quietly; they dare you to explore their steep, clay-rich slopes that shift underfoot and shimmer with clay tones from gray to warm pink. The hike through Bentonite Bluffs is a practical challenge and an invitation to meet a landscape that feels fiercely itself—rugged, colorful, and unexpectedly alive.

Stretching roughly 3 miles in total, this out-and-back trail commands respect with an elevation gain of about 600 feet, compacted into steep ascents that test your balance on crumbly bentonite clay. The terrain demands sturdy footwear with solid traction, since these hills hold onto moisture and become slick after rains. The path weaves through pockets of pine and spruce that stand guard over the bluffs, offering shady breaks where the breeze from Lake Sakakawea cools the air. Expect the natural world here to be both a challenge and a relief.

As you climb, the bluffs angle outward like sentinels overlooking the lake’s blue surface, which flirts with the horizon below. The wind dares to sweep across this exposed edge, pushing waves ashore with lively energy, while below, the water mirrors the sky’s moods. Keep your pace measured—the steep slopes are less about speed and more about steady, confident movement.

Bring plenty of water; this is a dry region, and although the forest canopy intermittently softens the sun, the sun itself is relentless. The best seasons to attempt Bentonite Bluffs are late spring through early fall when trails are firm but not frozen or overly muddy. Winter hikes can be undertaken but require spikes or traction devices and caution around icy patches.

For the practical adventurer, the trailhead is easy to locate near the town of Underwood, which offers basic amenities and a calm spot to rest before and after your trek. Check weather updates, dress in layers, and prepare for sudden shifts in wind, which the lake always seems eager to deliver. This hike isn’t about conquering nature but reading its signals and moving in harmony with its rhythm.

In the end, the Bentonite Bluffs offer not just a hike but a tactile conversation with North Dakota’s layered earth—a place where every step connects you to the ancient shaping forces of wind, water, and time. The colors and cliffs aren’t simply backdrops; they're active participants demanding respect and attention, rewarding hikers who balance wonder with caution. Embrace the climb, steady your footing, and let the landscape speak on its own terms.

Recommended Gear

Hiking boots with good grip

Essential

Necessary to safely navigate the slick bentonite clay and uneven hill surfaces.

Hydration system or water bottles

Essential

Critical for maintaining hydration in this dry, exposed environment.

Layered clothing

Essential

Allows adjustment for variable temperatures and lake breeze.

Traction devices (for winter)

Spikes or microspikes improve footing on icy patches during winter hikes.

winter specific

Seasonal Guide

spring Hiking

Spring brings awakening greenery and patches of wildflowers, but clay can stay wet and unstable. Prepare for muddy conditions.

Best For:

  • wildflowers
  • moderate temperatures

Challenges:

  • muddy trails
  • variable weather

summer Hiking

Summer offers stable, dry trails and extended daylight hours, but sun and heat require careful hydration and sun protection.

Best For:

  • long daylight
  • warm weather

Challenges:

  • heat exposure
  • dry, dusty trail sections

fall Hiking

Fall’s crisp air and changing foliage create spectacular views. Be mindful of cooler mornings and quickly shifting conditions.

Best For:

  • cool temperatures
  • fall colors

Challenges:

  • shorter days
  • early frosts

winter Hiking

Winters are harsh with icy bluffs requiring traction devices. Trails may be snow-covered and less accessible.

Best For:

  • quiet solitude
  • snowy landscapes

Challenges:

  • ice patches
  • limited trail access

Frequently Asked Questions

How long is the Bentonite Bluffs hiking trail?

The out-and-back trail is approximately 3 miles round trip, with an elevation gain of around 600 feet.

Is the trail suitable for beginners?

While not technically difficult, the steep and slippery clay terrain makes it more suitable for hikers with moderate experience and good balance.

Where can I park near the trailhead?

Parking is available at the trailhead near Underwood, where there is a small lot providing access to the Bluffs.

Are pets allowed on the trail?

Pets are generally allowed but should be kept on a leash due to the terrain and local wildlife considerations.

What wildlife might I encounter on the Bentonite Bluffs?

You may spot white-tailed deer, various songbirds, and occasionally red foxes. Raptors frequently soar overhead.

Is there cell service on the trail?

Cell service can be patchy due to remote and rugged terrain, so plan accordingly and inform someone about your plans before hiking.

Local Insights

Hidden Gems

  • "The small, sheltered bays along Lake Sakakawea provide quiet spots for reflection and wildlife viewing."
  • "A rarely visited viewpoint near the northern end of the bluffs reveals sweeping water panoramas with fewer crowds."

Wildlife

  • "Keep an eye out for sharp-tailed grouse performing early morning mating dances in nearby grasslands."
  • "The bluffs host several species of migratory songbirds, especially during spring and fall."

History

"The Bentonite Bluffs region was historically significant for indigenous tribes who utilized the name and nearby waters as guiding landmarks."