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
The largest volcano on Earth is Mauna Loa, Hawaii, with an  area of 5271 km2, more than half of the big island of Hawaii. It  is also the largest in volume, at more than 7â¦5,000 km3. The Mauna  Loa (long island) ridge extends for more than 120 km, but at  a slightly lower elevation than Mauna Kea to the north.    The largest volcanic crater in the continental US is the  Yellowstone supervolcano in Yellowstone National Park, in NW  Wyoming in the US.