The memorial depicted above is located at this veterans' cemetery, and is dedicated to a US submarine lost with all hands during World War Two. I do not know that the submarine had any connection with Wyoming, and finding the memorial there was a bit of a surprise.
This bridge crosses the North Platte River just below the cemetery, and has a series of memorials on the north side, which can be seen here and in the photographs below. The bridge is very near where Richards Bridge, a pioneer bridge with a trading post and an Army outpost, was located in the 19th Century.
The following photographs were taken on May 23, 2015, when this cemetery was decorated for Memorial Day, 2015.