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Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 24 (1917) > Annual Issue

 

Document Type

Research

Abstract

Visitors to the Maquoketa River gorge below Monticello in Jones County have been impressed with its rocky walls of the Niagaran formation which rise in places 100 to 125 feet above the stream. Overlying this rock formation are drift and loess. Crags, turrets, and chimney rocks, similar to the rugged features of the valleys of the driftless area, appear here and there. In fact, the characteristics of this gorge are so nearly like those of the valleys of the driftless area that in the report of the Geology of Jones County the gorge is considered to be pre-glacial in age.

Publication Date

1917

Journal Title

Proceedings of the Iowa Academy of Science

Volume

24

Issue

1

First Page

83

Last Page

85

Copyright

©1917 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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