USGS IMAP 1802-A: Geologic map of the western equatorial region of Mars
By Planetary Geologic Mapping
1986 (approx.)

Detailed Description
USGS IMAP 1802-A: Geologic map of the western equatorial region of Mars
By: D. H. Scott and K. L. Tanaka
Map and associated documents are available from the USGS Publications Warehouse: https://doi.org/10.3133/i1802A
Sources/Usage
Public Domain.