This is a cache in tribute to a nefarious character known as the Mad Tree Hanger of NoVAGO. He has been on sabbatical for a few years. He has returned with another one of his devious puzzles. You will have to solve it if you want to get your name on the log and find a code that will help lead you to the Bonus in the NoVAGO TRIBUTES17 Series.
Good luck!
Each cache in the TRIBUTES17 can be found individually, but make sure you collect the clue inside. You'll need it to find the TRIBUTES17 BONUS! Each 3 letter digit character clue is hidden in plain sight in each container and is in the format "Z = A1!". More details can be found on the Bonus cache page GC7CXFE.
NOTICE: This cache is hidden with the permission of the Fairfax County Park Authority. Geocachers must abide by all Park Authority rules. Park is open from Dawn to Dusk. Night Caching in Park Authority parks is expressly forbidden.