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Crawford Creek Rehabilitation and Native Salmonid Reintroduction

Decision Notices


Currently, the lower quarter mile of Crawford Creek, downstream from an old water diversion structure, supports mixed populations of rainbow trout (Oncorhynchus mykiss), westslope cutthroat trout, rainbow trout x westslope cutthroat trout hybrids, and brook trout (Salvelinus fontinalis). The next two miles (upstream) of the creek supports rainbow x westslope cutthroat trout hybrids and a few brook trout. The uppermost reaches of Crawford Creek (approximately 0.5 miles), above a natural waterfall barrier, supports a small population of genetically pure native westslope cutthroat trout. A new permanent barrier to upstream fish migration was constructed near the downstream end of Crawford Creek in 2005. The proposed action involves removing non-native fishes from the 1.5 miles of stream between the natural upstream barrier and the recently constructed downstream barrier using piscicides. Crawford Creek will then naturally be re-colonized by genetically pure WCT drifting in from upstream areas.