The Rangers found a ravine where they could shoot at the Comanche from cover .
The Rangers immediately retreated , only to discover they had committed a classic error in fighting mounted archers : the Comanches pursued in turn , able to shoot what seemed like clouds of arrows .
The Rangers found a ravine where Rangers could shoot at the Comanches from cover .
The Rangers immediately retreated , only to discover they had committed a classic error in fighting mounted archers : the Comanches pursued in turn , able to shoot what seemed like clouds of arrows .