Wednesday, March 23, 2016

Thursday, March 17, 2016

Geo tour of Northern Arizona

The Arizona  Geologic Survey posted a  Geo tour of Northern Arizona -- A virtual Field trip


Check it out

Harry Allen

Tuesday, March 1, 2016

airplane geology

On your next flight --find out the geology of flyover country/

rocks from above

Harry Allen

Sunday, October 25, 2015

Repeat Photography Project

 Look at the comparison of the old and new photos of the glaciers in Glacier N.P.

Repeat Photography Project | Northern Rocky Mountain Science Center (NOROCK)

See the results of Global Warming.

Harry Allen

Saturday, August 29, 2015

More on the Gold King Mine Blowout

Arizona Geology has more Info on the Gold King Blowout in their blog:

EPA report on Gold King

Harry Allen

Sunday, August 23, 2015

Gold King Mine Flood

Arizona Geology  has a link to more data on the cause of the Gold King  Mine flood.


We were in the San Juans  the day it flooded the Animas River.

Harry Allen