Special Protection for Special Places
Visitors to Yosemite National Park are the park's most important guardians. With Yosemite's nearly four million people watching over its special plants, animals, historic, and archeological sites, imagine how well-protected these park resources could be!During your visit to Yosemite, be aware that there are people who either intentionally or unknowingly harm park resources. Please contact a park official if you see any of the following illegal acts:
If you see activities that could harm people or park resources, jot down any descriptions or a vehicle license plate number and contact the park dispatch office at 209/379-1992; if someone's life is in danger, call 911. See below for more park regulations.
Keep Wildlife Wild
Respect animals at a distance: never feed or approach them.
Some visitors choose to bring pets along on their vacations. In Yosemite, pets have a few rules to follow.
Each season, plants are crushed from bicycle travel in meadows, campgrounds, and picnic areas. Please respect park resources and keep bicycles on paved roads and paved trails.They are not allowed to travel off-trail, on unpaved trails, or in wilderness areas. Mountain biking opportunities are available in designated areas outside of Yosemite. Bicyclists under 18 years of age must wear a properly fitted bicycle helmet.
Hiking and Climbing Safety
Traveling through Yosemite by car, bus, or bicycle provides a wonderful opportunity to slow down and enjoy the park 's incredible scenery. When traveling on park roads you can protect yourself, other visitors, and park wildlife by observing the following simple rules:
Success! Five years ago, many areas along the Merced River showed signs of human trampling.The soil was bare and heavily eroded. Now, because of the careful actions of visitors and park staff, many of these areas have been restored to more natural conditions.The plants, birds, insects, and animals that depend on living in or near the water have been able to return to these once barren areas.
You can help continue this progress by entering and exiting the river at designated launch and removal points, and by taking breaks on rocky, sandy beaches or point bars. Packing out what you pack in will also help keep the river free from trash and prevent animals from swallowing harmful plastic or aluminum. Please observe the following safety tips to protect Yosemite's river and lakeshore habitats and to safely enjoy water activities throughout the park.
Other Environmental Hazards
Yosemite National Park Regulations
The Superintendent's Compendium [10 MB PDF] is a compilation of designations, closures, permit requirements, and other restrictions made by the superintendent, in addition to what is contained in Title 36 of the Code of Federal Regulations (Chapter 1, Parts 1 through 7 and 34), and other applicable federal statutes and regulations.
El Portal Administrative Site Regulations
The Superintendent's Compendium [120 kb PDF] is a compilation of designations, closures, permit requirements, and other restrictions made by the superintendent, in addition to what is contained in Title 36 of the Code of Federal Regulations (Chapter 1, Parts 1 through 7 and 34), and other applicable federal statutes and regulations. Additionally, the superintendent has issued a moratorium on construction and expansion in the administrative site [21 kb PDF].
Did You Know?
Natural fires in Yosemite are often no more than a single burning snag (standing dead tree) or a slow moving, low intensity fire that cleans underbrush from the forest floor. These fires prevent unwanted fires by removing accumulating forest debris that can fuel a larger fire in hot, dry conditions.