USGS IMAP 1949: Geologic map of the Ra Patera area of Io
By Planetary Geologic Mapping
1988 (approx.)
Detailed Description
USGS IMAP 1949: Geologic map of the Ra Patera area of Io
By R. Greeley, P. D. Spudis, and J. E. Guest
Map and associated documents available from the USGS Publications Warehouse: https://doi.org/10.3133/i1949
Sources/Usage
Public Domain.