grullo wild horse mustang stallion in early morning sunlight in the pryor mountains wild horse range on the border of wyoming

america animal arrowhead big black blue bowl caballus canyon cut early equus female feral ferus free gray grulla grullo horn horse male mammal mane mare montana morning mountain mountains mustang one proud pryor pryors range ridge roan rockies rocky scar silver stallion states sunlight sunlit sykes tail teacup tillett united usa west western white wild wyoming