Temporary Closure of Waters Around Alcatraz Island
From 7/3 to 9/22 a 500’ marine buffer zone is in effect, closing the perimeter of Alcatraz Island to all private vessels to protect nesting seabirds during America's Cup racing. Tours to Alcatraz continue as usual during the races. More »
Muir Beach (but not nearby Muir Woods) closed July 8-November 2013, but local businesses are open
Though Muir Beach is closed from July 8-November 2013 due to construction, the PELICAN INN IS OPEN. Restrooms and parking are not available at Muir Beach. Pacific Way is closed except to residents. Check back for updates or call (415)561-3054. More »
CAUTION: Post Storm Damage to Coastal Trail
The Presidio Coastal Trail segment just north of the Pacific Overlook and adjacent to Lincoln Blvd remains CLOSED indefinitely. We have posted signage to alert bicyclists and hikers and with information for safe trail alternatives. More »
Climate Change and National Parks
Some national parks are already experiencing significant impacts from global warming. Glaciers are melting, alpine habitats are being replaced by warmer climate zones, wildfires are larger and more frequent, and floods and diseases are more commonplace in many parks.
Some of our national parks could lose their signature treasures. Glacier National Park could be without glaciers by the mid part of this century. Some scientists believe that Joshua trees could disappear from Joshua Tree National Park, and saguaro and giant sequoia are threatened in their namesake parks.
Here are some predicted effects on western national parks:
• Alpine meadows replaced by fir and sagebrush
• Aquatic life stressed by early runoff, warmer water, and evaporative stress
• Vegetation drought stressed by increased summer temperatures and late season drying
• Recreational opportunities impacted by environmental changes, such as loss of snowpack, and by limiting of access to protect disrupted habitats
Learn more about climate change in national parks and the National Park Service response, or use the links at the right to find out more about climate change and national parks.
Did You Know?
Dwight David Eisenhower, the 5-star general who served as the U.S. Army chief-of-staff, visited Fort Mason, between 1945 and 1948, to review the post’s demobilization efforts. In 1952, Eisenhower was elected America’s 34th President.