Lew Creek Ecological Reserve was established to protect a complete watershed containing an elevational sequence of three biogeoclimatic zones in a wet interior environment.
Ecological reserves protect special natural ecosystems, and support research and education. They are not intended for outdoor recreation. However, this ecological reserve is open to the public for non-destructive activities like hiking, nature observation and photography. Consumptive activities like hunting, fishing, camping, or foraging are prohibited. Motorized vehicles are not allowed.