Quincy Quarries Reservation This easy 0.6-mile loop trail features minimal elevation gain, making it ideal for casual hikers and families. The Quincy Quarries Climbing Trail offers an easy hiking experiencethattakes about 0.5–1 hour to complete. While hiking is available, the primary draw is rock climbing. This is a very popular rock climbing and bouldering quarry with many top rope options and routes of varying difficulty from novices up to 5.14 routes for experts. The reservation’s main highlight is its significant historical importance. Quincy Quarries Reservation is where America’s large scale granite quarrying industry was born and is famous for being the source of stone used for the Bunker Hill Monument. The Granite Railway, a Civil Engineering Landmark, was established in 1826 and was designed and constructed by railway pioneer Gridley Bryant. The reservation is connected to the trail system of the Blue Hills Reservation and features hiking, rock climbing and views of the Boston skyline. The property features 22 acres with quite a bit of graffiti, but also some areas that retain their natural character.