A Multi with 10 possible stops at information signs, but you don't need to go to all of them and the order listed is not the most efficient; pick your own order. Pick and choose and get a number from each sign to get the coordinates for the final cache. You need 6 letters so must go to signs that give you each of those specific letters. The park is open dawn to dusk.
A family friendly adventure with some walking. Mostly on paved trails until you go on a short bushwhack to the final. Container is a small lock 'n lock with room for small swag for trading.
The final coordinates for the geocache are: N 39° 46.ABC' W 75° 31.DEF'
Rockwood Mansion A = 4th digit of year the mansion was completed
Gardens and Landscape A = the 4th digit of year the photo of Anna was taken
Edward's Playhouse B = the 3rd digit of year the photo of Edward was taken
Gardener's Cottage B = number of letters of the city where the architects were from
Ha-Ha C = the 1st digit of the year the large photo was taken
The Lodge D = 4th digit of year the photo with the man was taken
Conservatory D = the number of kids in the center photo
Scenic Vista E = the approximate number of miles to the Delaware River
Kitchen Garden E = in the letter to Mr. Shipley, what is the 1st digit of the day it was sent in 1859
Fruit Cellar F = number of pears in the photo
You can validate your puzzle solution with certitude.
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Good job, JeffS47 and MikeOtt; got the FTF. Woo-hoo!!