 <unk> processes , including glaciation , flooding , and fluvial geomorphic response , have been fundamental in creating landforms in the park . The park also contains approximately 3 @,@ 200 lakes ( greater than 100 m2 ) , two reservoirs , and 1 @,@ 700 miles ( 2 @,@ 700 km ) of streams , all of which help form these two large watersheds . Wetlands in Yosemite occur in valley bottoms throughout the park , and are often <unk> linked to nearby lakes and rivers through seasonal flooding and groundwater movement . Meadow habitats , distributed at elevations from 3 @,@ 000 to 11 @,@ 000 feet ( 910 to 3 @,@ 350 m ) in the park , are generally wetlands , as are the riparian habitats found on the banks of Yosemite 's numerous streams and rivers . 
