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

There’s never a bad time to visit Zion National Park, but if you’re visiting this Independence Day Weekend, plan for heat and ...

The National Park Service (NPS) issued a warning on Wednesday, July 2, that cyanotoxins produced by algae blooms had reached “the high end of safe exposure levels” in parts of ...

A toxic algae bloom, containing harmful cyanotoxins, has been detected in Lake Powell's Antelope Canyon, disrupting Fourth of ...