The mounds are located north of flint, off of I-75.
The mounds are a really good place to begin learning the capabilities of your rig. The park has sand, mud, and trails. The trails are narrow and have sharp turns, which are often off camber. The mud pits can be deep enough to swallow vehicles on 42 inch tires so I would suggest checking the depth before plunging into a mud pit.

For more information on the mounds, such as location, costs, and rules please visit the website below.

Below are pictures of some of the fun I have had at the mounds.