Mount Orizaba vs Mt Orizaba

Mount Orizaba and Mt Orizaba both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mount Orizaba	Yes	No	No	No
Mt Orizaba	Yes	No	No	No

As nouns, Mount Orizaba and Mt Orizaba are synonyms defined as:

Mount Orizaba and Mt Orizaba: an extinct volcano in southern Mexico between Mexico City and Veracruz; the highest peak in Mexico (18,695 feet)

Other synonyms of Mount Orizaba include Citlaltepetl, Pico de Orizaba.

Mount Orizaba (noun)	Mt Orizaba (noun)
an extinct volcano in southern Mexico between Mexico City and Veracruz; the highest peak in Mexico (18,695 feet)	an extinct volcano in southern Mexico between Mexico City and Veracruz; the highest peak in Mexico (18,695 feet)