This is a terrific ride that travels to Rocks State Park in Harford County.  We'll spend a fair amount of time on rural roads riding pass farm land.  There is a rest stop at a High's on Rt. 23 at mile 23.  There's a 2nd stop at mile 41 at either a 7/11 or a deli.  According to the cue sheet, there's 5600 feet of climbing over 65 miles so bring your climbing shoes and legs.  Rain will cancel the ride.