Still Waters, June 29th, 2024

Twentyfour Mile Reservoir

Twentyfour Mile Reservoir is the last we look at in the series of four southeast Idaho reservoirs IDF&G is managing as trophy rainbow trout fisheries. It is the most remote of the of these reservoirs. A summary of studies performed by IDF&G fisheries biologists is below.

At Twentyfour Mile Reservoir our crew captured one rainbow trout, three hybrids and 18 Yellowstone cutthroat trout. The rainbow trout was 19 inches long while the hybrids averaged 10.3 inches. The Yellowstone cutthroat trout averaged 14.1 inches long. This species’ average length is similar to that of the 2016 gillnetting survey when the average length of Yellowstone cutthroat trout was 14.7 inches. About 14% of the population sampled was legally harvestable, exceeding 20 inches in length. Anglers venturing to Twentyfour Mile Reservoir should also keep in mind that no motors are allowed on this small water body. 

Crystal Springs Pond will be drawn down in order to complete adjacent county road repairs.