Reservoirs, Ponds, Quarries Reveal Hidden Histories

Low water at Utah’s Pineview Reservoir has exposed century-old remnants of an artesian-well system that once supplied Ogden, renewing interest in the area’s history as the city upgrades its water pipeline. In California, Hirschman’s Pond’s tranquil setting conceals a former hydraulic gold mine, now protected as open space and habitat. On Cornwall’s Bodmin Moor, abandoned granite quarries have flooded into strikingly blue pools, though officials warn that cold water, jagged rocks and underwater hazards make swimming dangerous. Together, the sites show how water and nature can reveal or reshape landscapes marked by earlier industry.