Earth Fissures on Phoenix PBS Affiliate “Horizon” Show

A new Google Maps based interface for viewing earth fissures in four Arizona counties has been launched by the AZGS.  Earth fissures are a serious geologic hazard in Arizona where they have been known to […]

The Colorado Geologic Survey has a very comprehensive overview of the geologic hazard of rockfall in all its many forms in their latest issue of RockTalk newsletter. The entire 24-page newsletter is devoted to various aspects of the problem, mitigation options and case studies all with excellent photos. I highly recommend that you check it out. Click through for the link. (Photo by CGS)

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