American Signumat Ltd.

About forestry service, 21657, Queen Anne, MD, US, Maryland

Cockeysville is a census-designated place (CDP) in Baltimore County, Maryland, United States. The population was 20,776 at the 2010 census. == History == === Natural history === The low-lying valleys in and around Cockeysville are underlain by a soft, crystalline metamorphic rock called Cockeysville Marble. This rock, which was once limestone at the bottom of an ancient sea, erodes much faster than the surrounding harder schist. This process created fertile, rolling valleys with rich, lime-sweetened soils. These valleys supported mature hardwood forests. Dominant tree species would have included tulip poplar, American chestnut, various oaks (white, red, black), hickories, black walnut, and American elm. The understory would have had flowering shrubs and herbaceous plants like pawpaw, spicebush, mayapple, Virginia bluebells, and various ferns. Large mammals such as white-tailed deer, elk, and black bears were abundant. The area was also home to predators like mountain lions and bobcats.