Williamson rock

For 13 years, one of Southern California’s premier and most popular climbing destinations, Williamson Rock, located 20 miles northeast of Pasadena in the Angeles National Forest, has been off-limits to climbers. Why, you ask? An endangered amphibian, the diminutive mountain yellow-legged frog, writes Adventure Journal. In recent decades, the frog’s population had dwindled to roughly 100 individuals. As climbers began […]