About 5% of the park's landforms (mostly in its eastern margin near Mount Dana) are metamorphosed volcanic and sedimentary rocks.
=== Skale in erozija ===Skoraj vsa površja na območju Yosemite so granitne skale "Sierra Nevada batholith" (Batolit je velika magmatska globočnina nepravilne oblike, ki se proti dnu širi).