Pakistan, March 24 -- Named after the Indians who lived there, Yosemite National Park is located four hours south east of San Francisco in the Sierra Nevada Mountains.

The park draws four million visitors annually.

The most impressive site is Yosemite Valley, carved by rivers of ice millions of years ago.

It's seven miles long and about a mile wide and the crystal clear Merced River meanders peacefully through its meadows.

It's not only the first-time visitor who is awestruck by the granite walls that tower a 1,000 meters above the valley floor, which is itself 1,200 metres high.

The most sublime feature of Yosemite is Half Dome, which rises in serene majesty from flowery groves and meadows. About 10,000 years ago, the last glaciers ...