You do not have to go that way to get to Turkey Point. You can get there from the west and there are no gravel roads. If you go straight south of Osage City you will go probably 6-7 miles to the first curve to the west and you will turn east right there and go about 3 miles east. You will then turn south to go to the park.
You can also get to it from the south if you are on I-35. Get off at Lebo and go north until you hit the stop sign. (Probably 7 miles or so) Turn east at the stop sign and go about 2 miles until the road curves north. Turn east at that curve and go about 3 miles east and then turn south to go to the park.
There are signs at each turning point.

