YOSEMITE NATIONAL PARK, Calif. — A plan to rename a Yosemite National Park peak after the wife of 19th-century explorer John Fremont is running into opposition from the National Park Service.

The Fresno Bee reports that a bill making its way through Congress would change the name of 12,000-foot Mammoth Peak to Mount Jessie Benton Fremont. The peak is Yosemite’s sixth highest and lies in the park’s east.

Jessie Fremont was a strong advocate of preserving Yosemite Valley and the Mariposa Grove of Giant Sequoia trees. She chronicled her husband, John Fremont’s, expeditions as he explored the West.

The bill’s sponsor, Rep. Tom McClintock, says renaming the peak after Jessie Fremont is overdue and would recognize her important contributions to the state and nation.

But the National Park Service says Jessie Fremont has no link to Mammoth Peak.