Wyoming batholith

The Wyoming batholith is a granite batholith of Neoarchean origin &mdash;which forms the eroded core of the Granite and Laramie Mountains in central Wyoming. The Wyoming batholith lies within the Wyoming Craton. The batholith, in its time, was a magma chamber. Contemporary magma chambers are filled with lava and buried deeply and are inaccessible. The Wyoming batholith is accessible for study, its overburden having eroded away.