Dogs in the Roaring Fork Valley can be at risk when playing in water. A common parasite found in Colorado water sources can infect them. This parasite can cause gastrointestinal issues in some dogs, while others may not show symptoms.

Infection can occur through drinking contaminated water or licking fur after swimming. The parasite is present in many mountain streams, despite their clear appearance.

Further information on this issue is available from the Aspen Times, including details on the types of parasites and their effects on dogs.