Friday, February 21, 2014

Where did those Curling stones come from?

Here is a link to the place  where the curling stones are mined.

curling stones

Harry Allen

Wednesday, January 22, 2014

Copper Deposit Article

Terry Steinborn sent a link on Copper deposits from the Tucson Paper

Supergene Copper


Wednesday, January 15, 2014

Monday, December 30, 2013

New interactive Geology map of the Grand Canyon

The Arizona Geology just published a Interactive Geology Map of the Grand Canyon .

Interactive Map Grand Canyon

Harry Allen

Thursday, November 14, 2013

Natural Hazards near Home

Check this viewer to see the local natural  hazards in areas you visit in Arizona.

Harry Allen

Saturday, August 3, 2013