I came across this colorful box turtle while driving the tour road at the Sequoyah National Wildlife Refuge in Oklahoma. I think this is a male Three-toed Box Turtle.
The Three-toed Box Turtle is the most common Box Turtle we have in this area (Three-toed box turtles are so named due to the number of toes on the back feet).
I read that the males head and throat often display yellow, red, or orange spots which this one has. The eyes of mature males are usually red or reddish, whereas the female's eyes are usually deep brown.
Box Turtle - Sequoyah National Wildlife Refuge in Oklahoma.