This mountain was first known as Copper Peak, but was renamed by Jack Christensen for the William J. Worthington family, pioneers of nearby Quilcene.

In the same vicinity of the abandoned mine are the remains of a modified B-17 plane that crashed on January 19, 1952, when returning from a search-and-rescue mission.

Mount Worthington is located in the marine west coast climate zone of western North America.

As fronts approach, they are forced upward by the peaks (orographic lift), causing them to drop their moisture in the form of rain or snow.

[7] The mountains were sculpted during the Pleistocene era by erosion and glaciers advancing and retreating multiple times.