Be Prepared! Tire Chains or Cables May Be Required in the Parks at Any Time
All vehicles must carry chains or cables when entering a chain-restricted area. It's the law (CA Vehicle Code, Section 605, Sections 27450-27503). Road conditions may change often. For road conditions, call 559-565-3341 (press 1, 1). More »
Vehicle Length Limits in Sequoia National Park (if Entering/Exiting Hwy 198)
Planning to see the "Big Trees" in Sequoia National Park? If you enter/exit via Hwy. 198, please pay close attention to vehicle length advisories for your safety and the safety of others. More »
Inventory & Monitoring in the Sierra Nevada
The Natural Resources Inventory and Monitoring (I&M) Program provides an opportunity to improve the quantity, quality and availability of natural resources data for park managers and the public. This is a two-phase program. The first phase involves baseline inventory, or an extensive point-in-time effort to determine the location and condition of selected biological resources. Inventory may involve both the acquisition of new information and the compilation of existing information from disparate sources. The second phase is monitoring, or the collection and analysis of repeated observations over time to evaluate changes in the condition of a resource.
View the Sierra Nevada Inventory and Monitoring Program website.
Did You Know?
Patches of colorful pink snow in the High Sierra are actually colonies of snow algae — Chlamydomonas nivalis. Unlike most species of fresh-water algae, it thrives in freezing water. Compressing the red snow with your boot increases the intensity of the color. Warning: Do not eat it!