Utah State University Extension
The Rees Creek sub-watershed lies near the top of the Echo Creek watershed, and southeast of the main stem of Echo Creek, encompassing 10,584 acres of land. Rees Creek flows northwest and joins Echo Creek just north of the I-80 Castle Rock exit.
Extension, USU, "Watershed Fact Sheet: Improving Utah's Water Quality, Rees Creek Watershed" (2012). All Current Publications. Paper 1271.