Black River Escarpment (Wisconsin)

The Black River Escarpment is a geological feature in Eastern Wisconsin.^[1]^[2] The escarpment runs parallel to and between the Niagara Escarpment and the Magnesian Escarpment. The escarpment marks the boundary between bedrock from Lower Magnesian limestone bedrock and earlier Black River limestone. The escarpment emerges from Green Bay, on Lake Michigan. The escarpment's boundaries are not always visible to the untrained eye, but are marked by cliffs in some regions.

References

^ Lawrence Martin (1965). The physical geography of Wisconsin. University of Wisconsin Press. p. 247. ISBN 978-0-299-03475-7. Retrieved 2010-09-14.
^ "The Eastern Ridges and Lowlands of Wisconsin". Wisconsin Online. Archived from the original on 2010-06-17. Retrieved 2010-09-14.

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43°45′57″N 88°58′24″W / 43.76583°N 88.97333°W / 43.76583; -88.97333

[Martin1965-1] Lawrence Martin (1965). The physical geography of Wisconsin. University of Wisconsin Press. p. 247. ISBN 978-0-299-03475-7. Retrieved 2010-09-14.

[2] "The Eastern Ridges and Lowlands of Wisconsin". Wisconsin Online. Archived from the original on 2010-06-17. Retrieved 2010-09-14.

[1]

[2]

Black River Escarpment (Wisconsin)

See also

References