Weather forecasts are available from our Related Sites Page. Wilderness permits are required year-round for overnight trips. Overnight and dayhike permits are required when traveling on the main Mt. Whitney Trail, which begins above Lone Pine Lake if you are starting at Whitney Portal. The Inyo National Forest has a forest order signed into effect on July 25, 1997. It prohibits possessing or storing any food or refuse unless stored in a bear-proof container or in another manner designed to keep bears from gaining access to the food or refuse.
Rangers recommend backpackers use portable, bear-resistant food canisters.
Information on useful storage techniques and specific problem areas is available at Ranger Stations. Bear Canisters are also available for rental at Mt. Whitney Ranger Station and the Mono Basin Scenic Area Visitor Center. They are available for sale at the White Mtn Ranger Station in Bishop and the Mammoth Lakes Visitor Center. Canisters are also available for rent or purchase from sporting goods stores in the communities of Bishop and Mammoth Lakes. Similar to the year 2000 process, the forest wilderness office held a lottery for permit reservations for the Main Mt. Whitney Trail.