An outdoor view of flat, rocky ground near the Columbia River. In the background of the image is the far side of the riverbank. The expanse of land on the other side of the river is flat and open, with some low bluffs near the bank, and with no sign of trees or vegetation. On the closest shore are three tipis, made of mats or canvas or both. In the center of the photo are two people in western garb, seated on horses. The figure on the left faces the camera, wears dark clothing or a suit, and is riding a white horse. The person appears to be holding a staff or pole in the right hand. The horse has a dark saddle blanket. The man and horse on the right are in profile to the camera. The horse is dark, and the man's lighter trousers and coat stand out. Both people wear broad-brimmed hats.
A Native American man, identified as Dr. Whirl-wind (Charley Whirlwind, Sr.) of the Cayuse Tribe, is mounted on a horse. The man is wearing buckskin pants and shirt and moccasins. The shirt is decorated with feathers and beadwork on the front and sleeves. He is wearing a headdress with a full crown of feathers and strips of fur hanging down around his shoulders. He has a large beaded choker. The horse is solid brown in color and has a saddle, saddle blanket and bridle. On the ground in front of the horse is a dog with long, fluffy white hair. The man, horse, and dog are on a slope on the side of a mountain. Around them are some other slopes and some stands of pine trees. The top of the mountain is in the background.
A group of adults and children, identified as instructors and pupils of the Umatilla Indian School, are performing farm work. A group of children are hanging out of a window of a barn. Six horses are yoked to two wagons.
Three Native American men, identified as members of the Cayuse tribe, are seated on horses alongside an unidentified body of water. The man on the left side of the photograph is wearing a vest and a headdress; he is holding an unidentified item in his left hand. The man in the middle is riding bare-legged. The man on the far right is wearing a headdress and holding a hatchet in his left hand.
An outside photograph of a Native American man, who has been identified as Uma-Som-Kin. He is dressed in full native regalia, and sitting on a horse that is standing next to a river's edge. For his headdress, the man is wearing a bonnet with a single trail of eagle feathers. He is wearing a coat made out of a Pendleton blanket. He is wearing leggings that exhibit a geometrical design on the cuff--perhaps beaded--and beaded moccasins. Because no stirrups can be seen, it would appear that he is riding either bareback or using a blanket for his saddle. He is holding the horse's bridle in his left hand. The horse or pony has a spotted coat. The river disappears around a bend, blending into the hillside in the background. The terrain around the river shows rocks, grass, dirt and brush. On the river's opposite bank is a fence line that runs along the river's path. In the far background is an expanse of rolling hills.
An outside photograph of a Native American man identified as Uma-Som-Kin. He is dressed in full regalia and sitting on a horse, next to a river. For his headdress, the man is wearing a bonnet with a single trail of eagle feathers. He is wearing a coat made out of a Pendleton blanket. He is wearing leggings with a design on the cuff and beaded moccasins. Because no stirrups can be seen, it would appear that he is riding either bareback or using a blanket for a saddle. He is holding the horse's bridle in both hands. The horse has a spotted coat. Across the river, on the opposite bank, are two cottonwood trees. In the background are rolling hills.