r/newengland • u/Northing_Labs • 50m ago
The Bunker Hill Monument's granite came down Gridley Bryant's Quincy railway
The granite in the Bunker Hill Monument came out of Quincy on a railway Gridley Bryant built in 1826. He'd bought the quarry in 1825 for $250, and his partners were skeptical, but three horse-drawn cars of his design started running on 7 October 1826.
He's credited with the rail switch and the turntable, never patented either, and died poor in 1867. In 1830 he added the Incline, 315 ft long, pulling cars 84 ft up out of Pine Ledge Quarry, and it kept running until the 1940s.
The old quarry pits are the sharp-edged cuts along the bottom of the lidar picture.
- Air photo (NAIP 2023) over the lidar: Lidar of the old Quincy
- Same view, bare-earth lidar only (VAT shading: slope, openness, sky view)
Numbered pins on pictures 1 and 2:
Pin 1: A water-filled quarry pit
Pin 2: A multi-lane highway
Imagery: USDA-FSA NAIP 2023, public domain.
Lidar: USGS 3D Elevation Program (3DEP), public domain.