One of these signs is nailed to a tree. Ali is hiding at the base of other.
1: This road Parallels one of three State Scenic Rivers that are within the tag boundary for a short distance. The tag is much prettier in the day.
2: Its also Just East and North of a populated place in another County that shares the same name as one of the seven related Sioux tribes.
3: Three digit number equals "12"
Happy gator hunting.
EDIT: An inmate PM'ed me regarding the clues and what he has found...and it didn't quite add up.
I forgot to mention I found a glaring error on Google maps while putting the clues together. Compare with another map. Two of the three clues will still get you to the location. Extra bonus points for figuring the error.