Here are some descriptions and pics as well as a link to a website on Fox Snakes. After looking at this you will see you do not in fact have a Fox Snake. I applaude you for researching and asking its the best way to go.
Measuring 36 to 56 inches in length, this is one of Iowas larger non venomous species of snake (Conant and Collins, 1991). Ground color ranges from straw yellow to dark brown. Occasionally, there may be orange, yellow, or reddish pigment between the scales. There are large distinct body blotches that are very dark brown or black. These blotches become rings on the tail. The head may be light brown with yellow, orange, or reddish highlights and is usually unmarked except for a small design on top. The belly is a dirty yellow with black checkering.
Young fox snakes are noticeably lighter than adults, having a light brown or gray ground color and lighter body blotches with black outlining. The head is usually boldly marked with black lines, the most conspicuous of these being the line that travels diagonally from the eye to the angle of the jaw and the line on top of the head connecting the eyes. As with all North American rat snakes, the scales are weakly keeled (poorly defined keels on the dorsal scales and smooth lateral scales) and the anal plate is divided.
MN DNR
Identification
General description: This long snake has large, dark splotches on most of its body and dark rings on its tail. In young western fox snakes, the head has a black line from the eye to the jaw, and another across the top between the eyes. Western fox snakes do not have rattles.
Size: At 35 to 56 inches from head to tail tip, the western fox snake is among Minnesota's longest.
Color: The background color of the western fox snake is yellow to dark brown. The markings are brown or black. The western fox snake's belly is yellow with black marks. Adults have an unmarked bronze colored head.
The Western Fox Snake is a large snake, averaging 40 to 50 inches in length. Its yellow-brown to tan body is patterned along its length by a row of dark brown blotches on its back, alternating with smaller blotches on the sides. The belly is yellowish to cream with scattered square dark blotches. Young fox snakes are pale gray with the same dark brown pattern as the adults. Similar species include: Bullsnake, Eastern Hognose Snake, Eastern Milk Snake

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Fox Snakes
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