Visitors at Olmstead Point.  For generations families have enjoyed the wonders of Yosemite.
Four million people visit Yosemite National Park every year, some just taking in the sights as part of a day tour and others hiking, climbing, horseback riding, fishing, camping, skiing or even hang gliding.  Although the Park comprises 1,169 square miles, much of the activity occurs in the 7-8 square miles that is Yosemite Valley; on peak days more than 20,000 people can crowd into the Valley.  Working to support visitors are a National Park Service staff of 1,200 in summer and 800 in winter and the staff of DNC Parks and Resorts at Yosemite, Inc., the concessionaire since 1993, numbering 1,700 in summer and 800 in winter.  Additionally, the nonprofit Yosemite Conservancy provides grants and support to projects in the Park.  2014 will mark the 150th anniversary of the Yosemite Grant, providing a time to reflect on the human relationship to and impact on the Park.
Note: Yosemite is the third most visited National Park in the United States after the Great Smoky Mountains and the Grand Canyon.

History and Culture - Yosemite National Park
   Yosemite Grant Anniversary - Timeline
Delaware North Companies - Parks & Resorts
Yosemite Conservancy
Yosemite Online Library
Alfred Runte.  1990.  Yosemite: The Embattled Wilderness.  Lincoln, NE: University of Nebraska Press.
Central Sierra Environmental Resouce Center