This is a night cache with yellow markers (tacks). You will be on path/trail/road till the final location, which is a short distance from the path. It can be a bit spooky, especially near the end if it's pitch dark.
From starting coordinates, find the yellow marker and proceed along the paths.
When you reach the double yellow, you will have to commit to walking without marker for a short distance, but will be rewarded with a marker that is near the end.
When you can see a white marker or two, you are near the final. Do not follow the white. Stop and find the triple yellow and there you will be at the final.
The trails and paths are your friend till the end. You may have to lean or walk a few feet (not many) to see the next marker. FTF gets a bison tube.
Please note again. The park closes to non-campers at 10pm. You are responsible for following all park rules. The parking area is accessible and not gated at any time, though snow may prove to be an issue in winter.
There is a bonus night cache also. Don't forget to grab the coords from the container/cache.
Farragut Bonus Night Cache