Editing Yosemite Valley (section)

===20th century===
[[File:The Yosemite Valley from Inspiration Point, Showing Bridalveil Falls.jpg|thumb|right|The Yosemite Valley from Inspiration Point, showing visitors gazing at Bridalveil Falls, 1921]]
As with Yellowstone, the new federal park was under U.S. Army jurisdiction until 1914. In 1906, the state ceded the Valley and Mariposa Grove to the federal government. The [[National Park Service]], on its creation in 1916, took over Yosemite.{{sfn|Schaffer|1999|p=52}}
[[File:Jo Mora 1931 Yosemite map.jpg|thumb|upright|1931 [[pictorial map]] by [[Jo Mora]] ]]
Yosemite Valley is listed as a [[Historic districts in the United States|National Historic District]] and as a [[California Historical Landmark]].<ref name="nris"/><ref name=CHL/> After the creation of the Park Service, many separate hotel owners held separate concession contracts. The Yosemite Park Company had built the Yosemite Lodge and Yosemite Village had its own group of merchants. Fire had destroyed a number of the original valley hotels and concession owners came and went until Park Service forced the two largest companies to merge in order that one single concession contract could be given. In 1925 the two family-run companies became the Yosemite Park and Curry Company and went on to build and run the [[Ahwahnee Hotel]] as the company headquarters for years, introducing a number of traditions, including the [[Bracebridge dinner]].

[[Curry Village]] was the site from where villagers and visitors watched the [[Yosemite Firefall]]. This "fall" was large batches of red hot embers dropped from Glacier Point. The Park Service stopped this practice in 1969 as part of their long process of de-emphasizing artificial park attractions.

On July 6, 1996, a massive [[rock slide]], weighing an estimated 60,000–80,000 tons, crashed {{convert|1800|ft|m}} into the valley from the east side of Glacier Point, traveling at over {{convert|160|mph|km/h|abbr=on}}. Dust blanketed that part of the valley for days, and the wind speed in front of the slide is estimated to have been {{convert|300|mph|km/h|abbr=on}}. One person was killed in the slide.