Novel findings from University of Wisconsin, Oshkosh, geologist Timothy Paulsen and University of Colorado, Boulder, thermochronologist Jeff Benowitz have shed light on the complex and enigmatic ...

Brian J. Pedersen Arizona Daily Star Jun 29, 2010 Jun 29, 2010Updated Jul 21, 2014 ...

Having grown out of a 1775 Spanish presidio, Tucson is about an hour’s drive north of Mexico in the Sonoran Desert, where mountains surround a saguaro-studded valley that has sustained people ...