One For Dabungla Mystery Cache

The listed coordinates will bring a searcher to the Arden Gild Hall where one will have to solve a field puzzle to find the cache. Parking is abundant.

Dabungla is a relative newcomer to geocaching. He has impressed me with his canniness and ability to observe. Most of all, his ethical stance regarding geocaching is above reproach.
The cache can be found from gathering information from the signs near the entrance to the Arden Gild Hall. BYOP.
The cache can be found at N 39 48.AB9 W 075 29.C0D
A = The last digit of the address
B = The third digit of the year of dedication
C = The sum of the first and third digits of the address
D = The July dedication day minus three
The digital root of A + B + C + D = 3