Park Service’s No. 1 visitor

Alan Hogenauer’s checklist included America’s canyons, battlefields, calderas and parks. It took him half a century to finish, but, snorkeling at Virgin Islands Coral Reef National Monument last month, the 63-year-old became the first person known to have visited every National Park Service unit.

The 388 Park Service sites include Yellowstone (the oldest), the National World War II Memorial (the newest), Muir Woods and playwright Eugene O’Neill’s home in Danville.

The Park Service says none of its modern-day directors has visited them all.

Hogenauer, of Cerritos, gallivanted the globe for decades as an airport planner and consultant before settling at Loyola Marymount University, where he teaches travel and tourism.

He sets travel targets: every national forest, every presidential birthplace and graveyard, every country on earth -- a total of 250 lists.

-- Ashley Powers