Qa
Alluvium (Holocene); Unconsolidated clay, silt, sand, gravel, and cobbles underlying flood plains
Alluvium (Holocene)
Qt
Terrace deposit, low level (Holocene and Pleistocene); Sand, gravel, and boulders on flat benches
Terrace deposit, low level (Holocene and Pleistocene)
Qs
Sinkhole (Holocene); Solution depressions, hummocky, karst topography, and clusters of vertical caverns in areas underlain by carbonate bedrock
Sinkhole (Holocene)