This database contains depictions of areas explored for radioactive minerals by the former Czechoslovak Uranium Industry. The areas are indicated separately according to the following survey methods: surface or vehicle-born gamma survey, emanometry in test pits up to 1 m deep, combined emanometry and gamma survey in test pits up to 1 m deep, and combined emanometry and gamma survey in test pits 1-15 m deep.
The input data were mostly derived from records on individual radioactive sites. The records, which also contain all available data from prognostic reserve calculations, were supplemented with geochemical data, test results and gamma-ray spectrometric measurements.