Laton Alton Huffman was an American photographer who worked at an Army post  situated on the south bank of the Yellowstone River, at the mouth of what?
Laton Alton Huffman: Laton Alton Huffman (October 31, 1854 – February 28, 1931) was an American photographer of Frontier and Native American life. Laton Alton Huffman:  Having initially worked at Fort Keogh, he started to sell prints of his glass plate negatives. Fort Keogh: Fort Keogh is a former United States Army post located on the western edge of today's Miles City, Montana. Fort Keogh:  It is situated on the south bank of the Yellowstone River, at the mouth of the Tongue River.
the Tongue River