Who or what is Mont Blanc in the poem, Mont Blanc?

Mont Blanc is both a setting and a character in its own right in the poem. The mountain is personified as a source of guidance and a beacon of truth. Shelley even metaphorically refers to the mountain’s ability to communicate directly with humanity, addressing it in the second person: “Thou hast a voice, great Mountain, to repeal / Large codes of fraud and woe” (80-81).