Stocking and hatchery operations had had an overall negative impact on the Yellowstone cutthroat and Westslope cutthroat populations and in 1953 the National Park Service began closing the hatcheries and stopping stocking operations.
Stocking and hatchery operations had had an overall negative impact on the Yellowstone cutthroat and Westslope cutthroat populations. The National Park Service began closing the hatcheries and stopping stocking operations. This was in 1953.