California Sen. Alex Padilla wrote Interior Secretary Doug Burgum a letter of support for Yosemite's reservation system.

Americans use the Yosemite Decimal System (YDS) for routes. Europe subscribes to the French grading system. There are also Australian and British systems. Throw in differences in physique between ...

Results: Mean (SD) self reported climbing ability was 11.80 (1.20), or about 5.11d on the Yosemite decimal system scale. The mean (SD) experience level was 3.2 (1.9) years, and subjects competed in 10 ...