The post office is legally obligated to hold a package for only 10 days. Improper stock grazing can cause damage to trees, meadows and fragile stream areas. To help minimize impact, tie stock to a hitch-line between two trees or rocks on hard mineral soil at least 100 ft. from water and camp. Special regulations and grazing restrictions are in effect in some areas of the John Muir trail. Contact Park and Forest Service offices for specific information on stock travel.
Surface water is common along the trail, but open water sources are easily contaminated.
Boil, filter or chemically treat all drinking water. Water is contaminated by improper human-waste disposal. Bury human-waste at least 100 ft. from water and wet areas and burn or pack out all toilet paper. The mountainous backcountry environment presents many hazards not commonly encountered in our daily lives. Enjoy the challenge of the wilderness but don't take unneccesary risks.