Another multi to help make those challenges. I archived a cache near here, that nature took over, quite a while ago & I'm happy to see the spot is still available. Please be stealthy. Really busy area. Info can be found on a blue sign where the 1st word is Reserved.
Bring a pen & watch for wildlife
N 49 16.ABC
A = Number of letters in the 1st word
B = Number of letters in the 4th word
C = Number of letters in the 6th word
ABC sum check = 14
W 122 49.DEF
D = Number of letters in the 3rd word
E = Number of letters in the 8th word times 2
F = Number of letters in the 14th word
DEF sum check = 19