Youtube Favorite: Fly-through of Historic Carlsbad Caverns Stairs From YouTube: A team from the HDP office, consisting of HABS architect Mark Schara, HAER architect Jeremy Mauro, HABS historian Lisa Davidson, and HAER photographer Jet Lowe, traveled to Carlsbad, New Mexico, 29-31 January, to document the historic stairs in Carlsbad Caverns National Park. Beginning in 1925, […]