I interview Phil Pearthree about the new geologic map of the Phoenix valley, to help urban planners identify remaining aggregate resources that are needed to support development.
Steve Fortier talks about projects and resources at the USGS National Minerals Information Center.
The AZGS Channel is at http://www.youtube.com/user/azgsweb, with previous episodes of at AMR at http://www.youtube.com/playlist?list=PLLkn9lzbK_rcCj38_m1nlt7MweBLuiNTb
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