This is the bonus cache for the NRHP: Lynbrook and East Rockaway Adventure Lab. To get the needed information, the lab caches must be found first and the answers to are used to solve this puzzle.
Click here for the Adventure Lab
The cache is not at the icon. What is at the icon? The Denton Homestead. It was built as a tavern about 1795. The Denton family bought it in 1808 and converted it to a residential farmhouse. Additions were made to the house after it was moved to its present location in 1924. Also on the property is a carriage house from about 1900.
The puzzle: N 40 38.ABC W 073 39.DEF
A=House from 1840 - Two times the first digit, then add the last digit of the answer.
B=House form 1838 - Multiply the first two digits of the answer.
C=Haviland-Davison Grist Mill - Twice the first digit of the answer.
D=Rockville Cemetery - Last digit of the answer.
E=Haviland-Davison Grist Mill - Last digit of the answer.
F=House from 1793 - The last digit of the answer.