Roan Creek, Colorado 39.471211 -108.439337 Colorado USA https://www.google.com/maps/place/39%C2%B028'16.4%22N+108%C2%B026'21.6%22W/@39.4712151,-108.4415257,17z/data=!3m1!4b1!4m9!1m2!2m Google Maps: Roan Creek Valley A creek on Colorado's Western Slope. It flows through both Garfield and Mesa Counties. It has long been a reference point for ranchers and farmers who settled on its banks or near by. Harry Brown and others developed oil shale resources around Roan Creek, with Brown's Index Shale Oil Company operating in Roan Creek Canyon from the 1920's. During the oil shale boom of the late 1970's, oil shale retorts were built along the creek. Roan Creek has several branches or tributaries, including Carr Creek and Clear Creek. yes yes