The posted coords are my approximate guess for these tanks. The
tanks are indoors and are only available during business hours (7
days a week). To calculate the coords for the cache, study the
tanks and let:
B = the number of Large Mouth Bass
R = the number of Rainbow Trout
C = the number of Carp
CC = the number of Channel Catfish
P = the number of Pike
S = the number of Sunfish
G = total gallons of water in all tanks
You will now need to calculate the offsets.
X = [(B + CC) * P + 89]/1000
Y = [(S - R + C)/G + 101]/1000
To find the film canister cache, just add X to the posted
Latitude and subtract Y from the posted Longitude.