Challenging

Lone Tree Loop

Badlands loop with big views, wildlife, and a Little Missouri ford
Lone Tree Loop, Theodore Roosevelt National Park
Distance9.6 mi
Typical time5.5 hr
DifficultyChallenging
PetsNot allowed

Overview

If you want classic North Dakota badlands without the crowds, Lone Tree Loop delivers. This is a 9.6‑mile total loop through rolling buttes and wide‑open prairie, with commanding vistas from the Big Plateau and reliable wildlife sightings. Plan 5–6 hours: the distance, exposure, and water crossings make this feel bigger than the mileage.

What You’ll See

Expect a mash‑up of rugged badlands canyons and surprisingly flat prairie benches. The views from the plateau stretch across buttes and the Little Missouri country, and prairie dog towns, bison, wild horses, and pronghorn are common sightings. You’ll also pass Tomamichael Spring/Well (treat all water) and, if you add the spur, you can wander the park’s remote petrified forest with scattered fossilized logs.

Route and Direction

Most hikers start near Peaceful Valley Ranch via the Ekblom Trail or from Cottonwood Campground via the Maah Daah Hey—both approaches require a ford of the Little Missouri River right out of the gate. To skip the river, either connect via the Maah Daah Hey (adds about 3.2 miles round‑trip) or drive the unpaved road to the Petrified Forest trailhead and link into the loop from there (adds mileage but keeps your feet dry). The loop is signed but less worn than the MDH; carry a map/GPS and watch for stakes through creek bottoms. Clockwise is a smart call: a more gradual climb early, steeper descent late, and big views on the way back along Big Plateau.

Conditions and Challenges

You’ll ford the river and cross several creeks—depth and mud vary with recent weather. Bentonite clay here turns into slippery “gumbo” after rain, and the route can be faint across open grassland, with multiple marker lines where reroutes have occurred. There’s little to no shade, ticks can be heavy in season, and bison or wild horses may occupy the trail—give them space and detour. All natural water is non‑potable; treat everything.

Best Time to Hike

April through October is the sweet spot, with spring and fall offering the most comfortable temps and better light. Summer works but expect intense sun and heat—start early. After rains, the clay becomes slick and crossings deepen; be ready to pivot your plans if the river looks unsafe. Winter adds snow/ice and tougher route‑finding.

Logistics and Tips

There are no facilities at the trailhead. Free parking is available, but a park entry fee is required. Dogs aren’t allowed on park trails. Bring 2–3 liters of water, sun and bug protection, sturdy shoes that handle mud, and trekking poles for fords and steeper grades. If you add the petrified forest, enjoy it with your eyes—removing any material is illegal.

Pros

  • Clockwise option gives a mellow warm‑up and a scenic finale along Big Plateau
  • Petrified forest add‑on turns this into a unique geology tour with minimal extra effort
  • Often uncrowded for the payoff—big views and abundant wildlife without the bustle

Cons

  • Mandatory river ford from main starts that can be unsafe or impassable after rains
  • Bentonite mud gets slick and messy, making footing and navigation tricky
  • Trail braids and reroutes near creek bottoms can be confusing without GPS

Parking

Free parking at Peaceful Valley Ranch or Cottonwood Campground trail access (both require a river ford). To avoid the ford, park at the Petrified Forest trailhead via the unpaved access road.

Caution

Expect a bridgeless Little Missouri River ford, multiple creek crossings, slick bentonite mud after rain, full sun exposure, ticks, confusing reroutes in creek bottoms, and bison or wild horses on‑trail. Treat all water.

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