These regulations protect both pets and wildlife from disease and each other. The National Park Service has prohibited pets on trails for many years. In particular, dogs chase wildlife, pollute water sources, and can become defensive and dangerous in unfamiliar surroundings. Pet owners have the burden to assure their pet does not damage the park values for others in those areas where pets are allowed.
DNC Parks & Resorts at Yosemite operates a dog kennel in Yosemite Valley from Memorial Day through Labor Day. Written proof of immunizations (rabies, distemper, parvo, and Bordetella) must be provided. Dogs must be at least 20 pounds (smaller dogs may be considered if you provide a small kennel). You can get more information about the kennel by calling 209/372-8348.
There are a few additional (very obscure and unsigned) places where pets are allowed: Four Mile fire road in Wawona, on the Carlon Road, and on the Old Big Oak Flat Road between Hodgdon Meadow and Hazel Green Creek.
Did You Know?
In March 1987, the largest historical rockfall in Yosemite National Park deposited an estimated 1.5 million tons of debris at the base of Three Brothers, closing Northside Drive for several months.