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North Dakota trails · Achenbach Trail

Achenbach Trail

A 9.7-mile out-and-back in North Dakota, with 733 ft of climbing. Reaches Sperati Point and other summit/viewpoint destinations. Managed by the National Park Service.

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Length
9.7 mi
Elevation gain
733 ft
Difficulty
Expert
Max grade
24%
Steepest mile
+605 ft
Tread at ≥10% grade
2.3 mi
Shape
out-and-back
Bikes
no
Horses
no
Managed by
National Park Service

Elevation profile

1,947 – 2,681 ft123456789

The climbing is spread fairly evenly along the route. It gives back about 1,161 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Achenbach Trail

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5

Reaches

Heads up

Stream ford: expect at least one unbridged crossing.
Sections reported faint or hard to follow — carry a map or download this area offline.

Getting there

Achenbach Trail access. 47.59285, -103.33916 · directions

Daylight at the trailhead

On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 7:39 a.m., the sun rises at 8:10 a.m. and sets at 7:07 p.m., and the last usable light fades about 7:38 p.m. (CDT) — 10 h 57 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 19.4-mile round trip takes roughly 7 h 55 min, so leaving the trailhead at sunrise puts you back around 4:05 p.m. — 3 h 02 min before sunset.

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