Small container, listed via a sign as exactly 250' off a side trail! No bushwacking needed - which is the reason for this cache as the others listed require too much! AND, I want it easy to find for all that make the effort as this is a 1500' climb and 1.7 mile hike from the trailhead.
Great map of entire preserve available:
http://www.equinoxpreservationtrust.org/Map_FINAL_PROOF.pdf
Parking lot at trailhead, but this is very popular and it fills quickly on nice weekends.
Bring your own pen