district of Baltimore County were the largest producers of chrome in the world. In Maryland, chromite, a significant accessory mineral in the serpentine, was mined until 1860. Several old mines and quarries are still visible in these serpentine barrens. Soils The most common soil is Chrome silt loam, which occupies well-drained areas over serpentinite. In more moist settings Chrome grades to Travilah silt loam. Areas where serpentinite influence is weak or absent are limited in Soldiers Delight, but are easily recognized by their more luxuriant vegetation on the upland Manor loam or the floodplain Hatboro silt loam. See also List of wildflowers of Soldiers Delight List of woody plants of Soldiers Delight List of graminoids of Soldiers Delight List of ferns and fern allies of Soldiers Delight List of lichens of Soldiers Delight List of parks in the Baltimore–Washington metropolitan area References External links Nature reserves in Maryland Protected areas of Baltimore County, Maryland Former mines in the United States Chromium mines