Toxic Algae Blooms Reported At Curecanti National Recreation Area

September 18, 2022
Toxic algae has been detected in the Iola Basin of Curecanti National Recreation Area/NPS file
Toxic algae has been detected in the Iola Basin of Curecanti National Recreation Area/NPS file

A toxic algae bloom has surfaced at Curecanti National Recreation Area in Colorado, where park officials have closed areas in the Iola Basin to swimming, water skiing, paddle boarding, and wading. Recent water analysis from the basin show that cyanotoxins concentrations generated by the algal bloom exceed safe exposure level, which can be harmful to humans and animals.

Park staff say boating and fishing remain open throughout Blue Mesa. Caught fish should be cleaned in treated water. 

You should not let dogs or other animals drink water from any portion of the Iola Basin. Until further notice, the park recommends that dogs not swim in or drink reservoir waters.  

Harmful algae, also known as blue-green algae, is common and natural to park waters and found throughout Colorado. The algae can multiply rapidly to form blooms and scums, particularly in areas of shallow, warm water.  

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