Levels of cyanotoxins that were on the "high end of safe exposure levels" were observed at the mouth of Antelope Canyon in Lake Powell.

Federal officials are warning boaters and swimmers to avoid scummy water in Antelope Canyon after cyanotoxins were detected.

Levels of cyanotoxins that were on the "high end of safe exposure levels" were observed at the mouth of Antelope Canyon in Lake Powell.

Grand Canyon will be one of 14 schools competing in the conference next season. The accelerated transition comes after five Mountain West schools announced they intend to depart the conference and ...