With so little rain, not enough grass could grow to support large herds.
Eastern cattle could not survive on the tough prairie grasses.
Wagon trains had stripped the land of the resources needed to support ranching.
Hostile native americans in the area made settlement hazardous.
Selling land and building a trust of money for them
Returning them to their natice lands
Reintroducing the buffalo to reservation lands
Training them to become farmers
The end of long cattle drives
The transition of cowboys to ranch lands
The replacement of longhorns with new european breeds
The decline of the cattle industry in favor of sheep ranching.
Too many treees
Defend their land