Hi Randy
There are many spots up stream from lillys to ruin a prop. The best advice would be to talk to the dock guy at lillys, they have a map and I am sure that they would be happy to point out the hazzards. The best thing is to go up with someone who knows the waters.
In general
1) short creek creek comes in on the left as you go up stream, there is a lot of shallow gravel below the creek, stay to the right as you go up stream.
2) fall creek is on the right above short creek, approach from the left, as you get to the house on the left with the track boat lanch ramp angle across the river to the concrete ramp on the right side. Go up the right side until you get to the brush pile, then angle back to the left toward the log that looks like a gator. Then stay on the left side in the channel about 10 ft from the left bank until it starts getting deeper. There are still huge submerged rocks to look out for as you go up toward lookout.
There is really no reason to go above lookout unless the water is very high and fast, and even then there are plenty of fish between lookout and fall creek if you are interested in the restricted waters.
You can see a platform with a fence at the top of the bluff that is the "lookout" for the lookout hole.
Good luck. Check out Bill Babler's posts (or better yet, hire him for a day or half a day) and you will get a ton of info on how to navigate and fish tany.
George