Editing Yosemite Valley (section)

===Climbing===
Yosemite is now a world [[rock climbing]] attraction. The massive 'big walls' of granite have been climbed countless times since the 1950s and have pushed climbers' abilities to new heights. While climbers traditionally take several days to climb the [[monolith]]s, [[Bivouac shelter|bivvying]] on the rock faces, modern climbing techniques help climbers ascend the cliffs in mere hours. Many climbers stay at [[Camp 4 (Yosemite)|Camp 4]] before beginning big wall climbs, which became notable after [[World War II]] as "a birthplace of rock climbing’s modern age" and was introduced into the National Register of Historic Places in 2003.<ref name=":1">{{Cite web |last=Bailey |first=Eric |date=2003-02-28 |title=Yosemite's Camp 4 Placed on Historic Registry |url=https://www.latimes.com/archives/la-xpm-2003-feb-28-me-camp28-story.html |access-date=2022-07-07 |website=Los Angeles Times |language=en-US}}</ref>

Half Dome figures prominently on the reverse side of the [[California]] state quarter. Hiking to the top of Half Dome is one of the most popular hikes from the valley, and very crowded. The park now requires permits to use the trail, and in 2011 the permits sold out very quickly after becoming available.<ref>{{cite web|title = Half Dome: Everything you need to know about Yosemite's most demanding day hike|url = http://www.yosemitehikes.com/yosemite-valley/half-dome/half-dome.htm|website = www.yosemitehikes.com|access-date = 2014-09-17}}</ref> The park now{{When|date=July 2022}} uses a lottery system for hikers to apply for permits.