Levi Hannon

Levi Hannon is a GIS Coordinator at Florida Geological Survey

Levi develops, interprets, and manages geological and geospatial data for the USGS STATEMAP geologic mapping program. He also acts as co-project manager for the STATEMAP project.


The Evolution of Geologic Mapping In Florida

Geologic mapping is a core function of state geological surveys. The Florida Geological Survey (FGS) produced the first statewide surficial geologic map in 1909 at a scale of 1:1,000,000 (Matson et al., 1909). Since the publication of the first statewide geologic map, additional updated versions have been produced and published in 1922, 1945, 1959, 1965 and most recently in 2001. Each surficial geologic map produced between 1909 and 2001 contained additional data that were generally collected by field geologists. The way geologists collect, analyze and synthesize large quantities of geologic data has drastically changed since the first geologic map was created at the FGS. With these changes come inherent challenges including storage and management of large digital datasets, identification and conversion of non-digital “legacy” data to digital form, and serving digital data to end users.