Bob Hower’s favorite subject is the industrial landscape of the so-called Rust Belt, which was already in decline when he started shooting it in the early 1980s. That predilection makes him seem an unlikely choice to photograph trees. By his own admission, Hower once derided what he called “the School of Rocks and Trees” in photography. Then, several years ago, he was commissioned to do photography for Louisville’s City of Parks initiative, a plan to set aside thousands of acres of land around a nearby watershed. “To add to the difficulty for me, nature in these parts doesn’t offer the kinds of big landscapes you’d find out West,” says Hower. “It’s more modest and understated.” Yet Hower’s strategy was simple: “Nothing to do but go walk in the woods and keep your eyes open,” as he puts it.