• High Peaks and Big Berry Manzanita. NPS Photo|Sierra Willoughby

    Pinnacles

    National Park California

There are park alerts in effect.
show Alerts »
  • No Fires - Fire Danger EXTREME - No Fuego

    No Fires in the campground, no smoking on the trails. Observe these rules to protect park resources. No se permite fumar en los senderos, tampoco se permite las fogatas en el campamento. Proteja los recursos del parque y respete las advertencias. More »

  • Fee Increase at Pinnacles National Park

    On August 1, 2014 the 7 day entrance pass for Pinnacles National Park will increase to $10 for passenger vehicles and motorcycles; bicycle and pedestrian entry will increase to $5.00. The Pinnacles Annual Pass will increase on August 1 to $20.00. More »

Environmental Factors

An image of green grass and rock formations.

A view from the High Peaks in winter.

Photo by Glen Tao.

Geologic forces have created the landscape of Pinnacles, but a climate of hot dry summers and winter rains has also shaped the terrain. The vegetation of the park transforms each year as the rain stops and temperatures climb; hillsides go from vibrant green to golden brown within days. Many of the chaparral plants thrive when fires burn through to make room for new growth. Streams that are dry throughout the summer can flood during the winter and spring rains.

Non-native species and development have also had an impact on the Park. Exotic species of both plants and animals have threatened the native vegetation and wildlife. Roads and trails have created erosion and affected sensitive riparian areas. Park managers are working to limit the damage caused by these factors.

Did You Know?

Yellow Starthistle

The yellow star thistle is one of many invasive (non-native) plants threatening the ecosystems of Pinnacles. Many seeds are accidentally transported into the park on shoes and gear; you can do your part to prevent the spread of these pests by cleaning shoes, socks, and gear before visiting the park.