This data set is a portion of a statewide geology database, which is being compiled by the U.S. Geological Survey's National Surveys and Analysis (NSA) project, whose goal is to compile geologic, geochemical, geophysical, and other data.
Supplemental attribute tables included with this data set, contain additional descriptive information of each geologic unit. A user may use items SOURCE and CLASS to retrieve information about the original units from which these generalized units were formed.
NOTE: Because of the limitations of common GIS fonts, the letter combinations "Tr", "Mz", and "Pz" are substituted for the standard age symbols for "Triassic", "Mesozoic", and "Paleozoic."
HFS - contact metamorphism, hornfels
Q - queried unit