Redstone Quarry, in North Conway, operated from 1887 until 1948. The remnants of machinery, derricks, and buildings constitute one of the more interesting industrial archaeological sites in New Hampshire. The most detailed description of the site is at the excellent WhiteMountainHistory.org web site. Some fascinating pre-1948 photographs are posted there.
quarriesandbeyond.org. Notice the stoneman is not wearing eye or head protection. Many of these stone workers died young from silicosis, a terrible disease.
All photographs taken with a Panasonic G1 digital camera with 14-45 mm Panasonic Lumix and 9-18mm and 40-150mm Olympus lenses, tripod-mounted. I thank my North Conway friends for showing me these unusual sites. I have some older medium-format film negatives of the quarry that I need to scan and post some day.