Some of the grazing permits go back for generations. I've noticed that Clover Canyon tends to be but not this year for some reason, an every other year grazing. Grazing permits, like mining and water rights are age old in the west. But just case you are interested.... fs.fed.us/rangeland ... html
Interesting to note that some are difficult to get since they have been permitted long ago.
In Japan they say only old people and crazy people hike mountains...........yep
I ran into a rancher just east of Tonto Creek recently who was out riding and checking fences. He's does this every year in an effort to keep cattle away from the creek during the busy summer months. They just didn't do too well at preventing that this year. If you go West from the Hatchery TH, the first few miles is all grazing land as well.
Derrick trail had plenty of cow pies, too, this weekend.
The amazing thing is that the FS is grazing cattle in areas thinned for fire prevention. This is beyond moronic. Cows reduce grass cover and increase cover of shrubs and trees. Faster growth of shrubs and trees makes the area more fire-prone and means that the area will have to be thinned or burned again sooner than it might be otherwise. Any money they are making in grazing fees will surely being lost in increased fire prevention expenses.