Search:portage group -> PORTAGE GROUP
portage group
p o r t a g e g r o u p hex:#112;#111;#114;#116;#97;#103;#101;#32;#103;#114;#111;#117;#112;
The Salt of the World?
- Portage group - - A subdivision of the Chemung period in American geology. See Chart of Geology.