Last updated: January 25, 2021
Place
Stop #3: Minnelusa Formation
NPS Photo
Quick Facts
Location:
43.554526, -103.459070
Amenities
1 listed
Parking - Auto
Geologic age: Pennsylvanian & Permian
Drive 3.9 miles north on route 385. Park at the Wind Cave Canyon trailhead. A short hike on the trail (1 mile round trip) is required. Outcrops of this formation are on the left side of the canyon.
The Minnelusa Formation consists of interbedded limestones, sandstones and shales. It is yellow to red, with the shales being a grayish cream. Interbedded means that the limestones, sandstones, and shales alternate with distinct horizontal layers.
Can you see distinct layers? How are the layers different from those seen in the Minnekahta Limestone?
Drive 3.9 miles north on route 385. Park at the Wind Cave Canyon trailhead. A short hike on the trail (1 mile round trip) is required. Outcrops of this formation are on the left side of the canyon.
The Minnelusa Formation consists of interbedded limestones, sandstones and shales. It is yellow to red, with the shales being a grayish cream. Interbedded means that the limestones, sandstones, and shales alternate with distinct horizontal layers.
Can you see distinct layers? How are the layers different from those seen in the Minnekahta Limestone?