20659 Zip Code (Mechanicsville, MD) Detailed Profile. Cities: Mechanicsville, MD (4.97%), Golden Beach, MD (4.43%), Charlotte Hall, MD (2.79%) Counties: St. Mary's County, MD (96.05%), Charles County, MD (3.95%) Estimated zip code population in 2015: 24,656. Zip code population in 2010: 23,498.
the volcano mauna loa in hawaii used to be thought of as the largest volcano in the world but scientists have discovered one that s bigger much much bigger tamu massif is a massive volcano about the size of the british isles or more than three times the size of new brunswick
âIt is in the same league as Olympus Mons on Mars, which had been considered to be the largest volcano in the solar system,â Sager told National Geographic. Tamu Massif is a rounded dome that measures about 280 by 400 miles (450 by 650 kilometers), or more than 100,000 square miles.