I fished in Colorado outside of Breckenridge last winter. Maybe as many as 25 days in the same area of small pools on the Blue River upstream from Dillon Lake. If fish were dying after I caught them something was eating them quickly as I never saw a dead fish in the water. They could not float downstream as there were several shallow pools where the water ran very slow and you could see the bottom easily. The water slowly filtered out of these pools through small rock dams, a dead fish would not have been able to pass through them.
JoeL
