PowerPoint Show by Andrew

California's Yosemite National Park was established on October 1, 1890.

More than a century ago, naturalist John Muir, a strong advocate for the recognition and protection of the region, successfully lobbied congress to set aside more than 700,000 acres as one of the nation's first national parks.

Up to 4 million visitors per year make the trip to Yosemite.

Yosemite Valley

Visitors pose on Glacier Point, 3,201 feet above the floor of Yosemite Valley, 1887.

Yosemite Valley, California, 1865.

Yosemite's Domes, 1865

Liberty Cap, 1902.

Theodore Roosevelt and John Muir on Glacier Point, Yosemite Valley, California, in 1903.

Bicycles are a favorite means of getting to key locations on the Yosemite Valley Floor in Yosemite National Park, on July 8, 1952.

Deluxe camping is done by trailer travelers who bring their rolling homes to Yosemite Valley, Yosemite National Park in California, on July 8, 1952.

At Glacier Point, 3,254 feet above the floor of Yosemite Valley, numerous peaks of the main Sierra Nevada range can be seen, July 8, 1952.

Susan Ford, daughter of President Gerald Ford, learns photography from Ansel Adams at his gallery near Yosemite National Park, in June of 1975.

A park ranger points out highlights to Queen Elizabeth II during her visit to Yosemite National Park, on March 5, 1983.

Mountains and meadows in Yosemite National Park.

Waterfalls in Yosemite, photographed in May of 2010.

Roger Sinnott sets up his 5x7 view camera toward the Clark Mountain Range on September 15, 2005.

The setting sun hits Horsetail Fall at just the right angle to light it up as if it's on fire, in Yosemite Park, in February of 2008.

Massive granite towering over Tenaya Lake, in 2011.

Banner Peak in the Ansel Adams Wilderness, outside Yosemite National Park, on September 25, 2012.

Half Dome as viewed from Glacier Point.

Last portion of the ascent to the top of Half Dome.

A deer runs through a parking lot in Yosemite Valley on August 28, 2013.

Yosemite Valley, with Half Dome at left.

Spring runoff is in full swing as seen from a distance of Bridalveil Falls in Yosemite National Park, on May 16, 2008.