This is a puzzle cache and not located at these coordinates. However parking is at these coordinates which is the parking of South Portland's Waintwright Farms Sports Complex (baseball, soccer, football fields). It is also home to the Eastern Trail bicycle path that goes from Canada to Florida hugging Interstate 95.
To get the coordinates to the final you must first play a text adventure game found here. Once you play the game and get the latitude and longitude you can verify they are correct using Geocheck: .