Are the granite domes in Yosemite National Park a batholith or sill?

Batholiths and sills are both intrusive igneous rock formations. Batholiths are large, discordant masses of intrusive igneous rock that have cooled below the Earth's surface. Sills are tabular, concordant bodies of intrusive igneous rock that have been injected between layers of sedimentary rock.

The granite domes in Yosemite National Park are not intrusive igneous rock formations. They are extrusive igneous rock formations called lava domes. Lava domes are formed when viscous lava accumulates around a vent and builds up a steep-sided mound.