Ever wanted to know more about the ground beneath your feet? Well, thanks to a new geologic map of the lower 48 states of the USA, now you can – and in more detail than ever before. Geologic maps are ...

From Australia's remote deserts to the surface of Mars, geological mapping underpins how we understand landscapes, natural resources, and the processes that shape our planet and others beyond it. A ...

Nearly two dozen state geological surveys depend heavily on federal funds. A proposed budget cut could slow or stop key geologic mapping work. By Rebecca Dzombak Every spring for the last 31 years, ...