Utah State University Extension
Cattle can damage streams and surrounding vegetation (riparian areas) by over-grazing riparian vegetation, breaking down banks, decreasing water quality, which can reduce fish populations and wildlife numbers. Suggested solutions to this problem have traditionally ranged from the cost prohibitive - constructing fences along waterways – to the extreme – removing livestock completely from rangelands.
Burritt, Beth, "Training Livestock to Leave Streams and Use Uplands" (2012). All Current Publications. Paper 1248.