Don Neubacher, the six-year superintendent of Yosemite National Park who helmed the Point Reyes National Seashore for a decade and a half, announced his retirement amid allegations of gender discrimination and a “toxic” work environment at Yosemite. 

Mr. Neubacher, who has a home with his wife, Patty Neubacher, in Point Reyes Station, sent a letter . . .