Although Paoli station is rather small today, Paoli has a rich Railroad History. In 1855 it became a official terminal for all Mainline Trains and a turntable and engine house were built. Also all trains travelling the line from Philadelphia via Lancaster to Pittsburgh passed through Paoli.
In 1915 a car shop was created next to the station to repair steam-powered engines which grew into larger railroad yards over time. Once the mainline was switched to electric the mid 20th century the railyards where converted to a electric train servicing facility, which eventually closed down in the 1980s and unfortunately left behind a lot of toxic waste from servicing transformers used in the engines. In the late 20th century the Paoli railyards became an EPA Superfund site, to clean up PCB and other toxic waste left by the railyards. You can still see today the large empty fenced area next to the station.
When travelling to the cache you will pass Woodbine Park, which actually also housed some train sheds and was connected to the mainline via a track.
This Multicache will take you into the Airdrie Forest. There is some up and down hiking involved - so wear sturdy shoes. Strollers will not work. The Cache has 4 stations and you can mostly follow the marked trail through the forest.
Stage 1: Start at location N 40° 02.795 W 075° 29.192 and search for a one digit number "written with metal on wood". This number is A - if A could be two numbers take the smaller one.
Stage 2: Proceed to N 40° 02.857 W 075° 29.150 and search for a two digit number engraved on a tree a long time ago under a US Flag. This number is B
Stage 3: Proceed to N 40° 02.897 W 075° 29.279 and search for a two digt number inside a Micro. To see the number you will NOT have to open the Micro - this number is C
The final Cache is at N 40° 02.((A * B) + 700) W 075° 29.((C * B) - 176)
The final is inside the forest and not on any private property.
Have fun.