Fishing regulations for Yosemite National Park follow those set by the State of California, including the requirement that people 16 or older have a valid California fishing license.
The season for stream and river fishing begins on the last Saturday in April and continues through November 15. The only exception is Frog Creek near Lake Eleanor, where fishing season does not open until June 15 to protect spawning rainbow trout. The late opening includes the first 1/2 mile of Frog Creek up to the first waterfall, including the pool below this waterfall. The late opening also extends 200 feet from the mouth of Frog Creek out onto the surface of Lake Eleanor and along its shore for a distance of 200 feet from the creek's mouth. Otherwise, all lakes and reservoirs are open to fishing year-round.
There are some special regulations that apply within the park:
Fishing supplies, including fishing licenses, are available at the Yosemite Village Sport Shop and at the general stores in Wawona and Tuolumne Meadows.