USGS IMAP 1934: Geologic map of the Uruk Sulcus Quadrangle of Ganymede
1988 (approx.)

Detailed Description
USGS IMAP 1934: Geologic map of the Uruk Sulcus Quadrangle of Ganymede
By J. E. Guest, R. Bianchi, and R. Greeley
Map and associated documents available from the USGS Publications Warehouse: https://doi.org/10.3133/i1934
Sources/Usage
Public Domain.