A friend has a ranch in Oregon and runs on BLM land. Years ago he had to keep his cattle away from the creeks. And BLM cleaned up all of the “crap” in the creeks. Fallen timber, big boulders, etc. The rancher was trying to explain to them that the trout liked that “crap”. And having the cows in the creek stirs up the bottom and keeps it from getting silted in.
10 years later the BLM was back in after the trout numbers had dropped. I imagine they spent hundreds of thousands of dollars on studies. They put all of the “crap” back into the creeks and let him run cattle again. The trout bounced back.
City kids get government jobs working in the country. Their G-man authority rots their brains completely. Listening to property owners is forbidden in their manuals on page 1.