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“Bite-Size Bits of Local, National, and Global History”

Pipestone in Pipestone County, Minnesota — The American Midwest (Upper Plains)
 

Quarry Layers

 
 
Quarry Layers Marker image. Click for full size.
By Ruth VanSteenwyk, June 20, 2018
1. Quarry Layers Marker
Inscription.  

This former quarry reveals the area's basic geologic layers. Beneath a cover of soil, the thick, pink-tinted layer of Sioux quartzite covers the tin, red-colored lower layer of pipestone - the prized stone of many tribal groups. As the slant of the quarry floor indicates, the rock layers angle deep into the earth.

Geologic pressures created the pipestone and quartzite layers over the past one billion years. Formed at the bottom of an ancient ocean, these layers of sediment were gradually compressed into stone and uplifted over the ages. The thick layers above and below the pipestone contained mostly silt and became quartzite. But the thin layer between was composed of fine clay - the reason the pipestone can be so easily worked.

The quartzite and pipestone layers visible here - and another thick layer of quartzite below them - dip toward the east at a 5-10 degree angle. As pipestone quarrying continues, an ever increasing quantity of the upper quartzite must be removed.
 
Erected by Pipestone National Monument, National Park Service, & US Department of the Interior.
Quarry Layers Marker image. Click for full size.
By Ruth VanSteenwyk, June 20, 2018
2. Quarry Layers Marker

 
Topics. This historical marker is listed in this topic list: Native Americans.
 
Location. 44° 0.785′ N, 96° 19.501′ W. Marker is in Pipestone, Minnesota, in Pipestone County. Marker is on Reservation Ave. Located near the Pipestone National Monument Visitor Center. Touch for map. Marker is at or near this postal address: 87 Reservation Ave, Pipestone MN 56164, United States of America. Touch for directions.
 
Other nearby markers. At least 3 other markers are within walking distance of this marker. Connection to the Earth Mother (about 300 feet away, measured in a direct line); Pipestone Pilgrimage (about 300 feet away); Sustaining the Sacred (about 300 feet away).
 
Related markers. Click here for a list of markers that are related to this marker.
 
Also see . . .  Pipestone National Monument. (Submitted on June 22, 2018, by Ruth VanSteenwyk of Aberdeen, South Dakota.)
 
Old Quarry image. Click for full size.
By Ruth VanSteenwyk, June 20, 2018
3. Old Quarry
Pipestone National Monument Visitor Center image. Click for full size.
By Ruth VanSteenwyk, June 20, 2018
4. Pipestone National Monument Visitor Center
 
 
Credits. This page was last revised on June 24, 2018. It was originally submitted on June 22, 2018, by Ruth VanSteenwyk of Aberdeen, South Dakota. This page has been viewed 91 times since then and 10 times this year. Photos:   1, 2, 3, 4. submitted on June 22, 2018, by Ruth VanSteenwyk of Aberdeen, South Dakota. • Andrew Ruppenstein was the editor who published this page.
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Aug. 12, 2020