She has spent hours in a shipyard in Gloucester, Mass., in an abandoned railroad yard in Altoona, PA. More recently, in Kensington, MD., she crept through a chain-link fence into an abandoned concrete-crushing plant. She shot the wall of a decrepit building at a spot where severed wires spiraled and zagged against cement stained pale lemon and taupe. She kept her distance and walked away silently. The homeless men whose voices floated from the building never knew she’d been there, photographing nature at its most ravenous and remorseless, slowly eating acres of steel.