St. Lawrence Lowlands

Proterozoic-Cambrian Nonconformity - Alexandria Bay
Precambrian nonconformity
Precambrian nonconformity
Potsdam sandstone
Potsdam sandstone

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Last modified 3-04 by Bret Bennington (geojbb@hofstra.edu.) All rights reserved by the author. This document may not be distributed or posted in any format or reposted on any other server without permission. The media available on this page may be downloaded for not-for-profit, educational purposes.