Mike Auney Trail in Theodore Roosevelt National Park

Theodore Roosevelt National Park, ND

Mike Auney Trail

A remote Big Plateau crossing with an unbridged river ford.

Length
3.1mi
Time
2hr
Elev. change
476ft
Difficulty
Moderate
  • No dogs
  • High point 2,697 ft

Hear the audio tour

A Prairie Dog Greeting

Overview

About Mike Auney Trail

Why go

  • A named foot route across the Little Missouri into Big Plateau backcountry.

Heads up

  • The unbridged river ford can be unsafe.
  • The reservation-only camp gate and remote endpoints complicate a one-way trip.

Map & elevation

The route

Loading the Theodore Roosevelt map
Full map
Elevation2,221–2,697 ft
TrailheadRoundup Horse Camp Trailhead47.00706, -103.50132
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Plan your hike

Before you go

Parking

Roundup Group Horse Camp is about 12 miles north of Medora via East River Road; the final 1.5 miles are gravel. The camp is gated and reservation-only, with the combination issued to registered campers. Day-hiker access or parking beyond the gate was not confirmed. The opposite end is a remote Maah Daah Hey junction on Big Plateau; check access and return logistics with park staff.

Safety

The Little Missouri crossing is an unbridged ford, and current depth was not found. A historical report described knee-deep water in September; check with park staff and do not cross if the flow is unsafe. The trail is faint for about a half mile at the Big Plateau end; follow the wooden posts.

2 active Theodore Roosevelt alerts

  • ClosureRidgeline Nature Trail inaccessibleThe South Unit’s 0.6-mile Ridgeline Nature Trail is currently inaccessible because of a road collapse. Check current park conditions.Official details
  • InfoPetrified Forest trailhead: use approved routeUse the approved legal route from I-94, Exit 10 toward Camels Hump Lake, and follow the clearly marked posts to the Petrified Forest trailhead.Official details
Theodore Roosevelt alerts
A park ranger sits on a dash-mounted phone, talking, as Parkwolf’s Tour Guide plays “Army Cutworm Moths: A Grizzly Bear Buffet” on Grand Loop Road below Dunraven Pass in Yellowstone
Parkwolf Tour GuideThe highest, rockiest slopes around here are a summer buffet for grizzly bears.

Theodore Roosevelt Tour Guide

Your drive to Mike Auney Trail, narrated.

Parkwolf is a GPS audio tour guide for Theodore Roosevelt National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.

See the Theodore Roosevelt audio tour

Recorded for this area

A Prairie Dog Greeting
0:00 / 0:31
“If you spot two prairie dogs meeting nose to nose, watch their greeting. Black-tailed prairie dogs recognize members of their group with what looks like a kiss or a sniff.”

Plays on the road 0.6 mi from the trailhead in the Parkwolf Theodore Roosevelt Tour Guide.

More stories near here in the app

  • Wind Canyon: A Short Climb Above the River
  • Bringing Bison Back
  • Beef Corral Bottom: Prairie Dogs and Cattle History
  • The Pronghorn’s Replaceable Horns
  • 45 audio storiesacross Theodore Roosevelt’s roads, triggered by GPS as you drive
  • Wildlife heatmapsfor Bison, Wild Horse, Wapiti, and 13 more
  • Works offlinemaps, 38 trails, 35 places, and audio download before you lose signal
  • CarPlay readysimple controls built for the drive
★★★★★
“Fantastic app with many points of information… It’s great to just turn on while you’re driving and it gives you an audio tour of the national Park. We love it!!!!”
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Trail guide

Hiking Mike Auney Trail

A remote one-way crossingMike Auney Trail is a 3.

Mike Auney Trail is a 3.1-mile point-to-point route between the gated Roundup Group Horse Camp on the Little Missouri’s east side and the Maah Daah Hey Trail on Big Plateau. Allow about two hours one way. It is a remote backcountry connector with an unbridged river ford and a substantial climb to the plateau. Walking back the same way makes it about 6.2 miles and means crossing the river a second time.

The Little Missouri fordFrom Roundup, the trail drops toward the Little Missouri.

From Roundup, the trail drops toward the Little Missouri. There is no bridge; a visitor report from September 2016 described knee-deep water. That is not a current depth report. Check with park staff before setting out, and do not cross if the water is high or unsafe. After the ford, the trail climbs more than 450 feet toward Big Plateau.

Finding the trail across Big PlateauThe western end joins the Maah Daah Hey on a grassy plateau.

The western end joins the Maah Daah Hey on a grassy plateau. The path can be faint for about its first half mile; wooden posts mark the line, and the tread becomes clearer near the plateau edge. This is a remote connection across the Little Missouri Badlands, not a developed overlook or a loop.

Access and logisticsRoundup Group Horse Camp is gated and reservation-only; only registered campers receive the…

Roundup Group Horse Camp is gated and reservation-only; only registered campers receive the gate combination. The last 1.5 miles of the drive are gravel. Day-hiker access or parking beyond the gate was not confirmed, and the other end is a backcountry junction rather than a road-accessible lot. Ask the park how to reach both ends and arrange a return before going. Pets are not allowed on park trails or in the backcountry.

Wildlife

Wildlife in Theodore Roosevelt

All Theodore Roosevelt wildlife maps

Sighting maps show where each species has been reported across Theodore Roosevelt. Wildlife moves, so no sighting is guaranteed.

Keep exploring

Near Mike Auney Trail

See it all on the map

Trails that start nearby

Places near the trailhead

Parkwolf’s Theodore Roosevelt ranking

Top-rated trails in Theodore Roosevelt

All 38 trails
  1. 1Caprock Coulee TrailModerate · 4.3 mi
  2. 2Wind Canyon TrailModerate · 0.5 mi
  3. 3Petrified Forest LoopModerate · 10.3 mi
  4. 4Painted Canyon Nature TrailModerate · 0.9 mi
  5. 5Big Plateau and Ekblom Trail LoopModerate · 5.4 mi
  6. 6Boicourt Overlook TrailEasy · 0.8 mi

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