Compass Rose Letterbox

Difficulty: depends on how good you are at land navigation
terrain: easy
time: when tested this only seemed to take about ten minutes, but of course, we already knew the route, so... anywhere from ten minutes to hours? (see the Difficulty rating)

Norwich, CT
UTM Coordinates (NAD27)
18744591E 4603877N

Starting point:
Chimneys are at 224 degrees
Left-most pole of the backstop is at 66 degrees