Woodlands are of the eastern hardwood type. Tree cover is limited to narrow strips adjacent to stream channels and draws, and on steep slopes that border the lake. Predominant trees are oak, hickory, cottonwood, sycamore, elm, hackberry, ash, and black walnut. Typical shrubs include dogwood, coralberry, sumac, plum and leadplant. Typical woodland wildlife includes owls, turkeys, woodpeckers, squirrels, opossums, raccoons, and deer.
Streams support such animals as muskrats, beaver, and amphibians.
Only dead wood on the ground may be cut for firewood on public land at Tuttle Creek Lake. Many standing dead trees provide habitat for wildlife, and so should not be cut. Many people find that the piles of driftwood deposited at high water are excellent sources for quality firewood. No permit is required to gather downed wood. All vehicles must remain on designated roadways.