Eastern Montana (map)

From Author Wars - https://authorwars.com/books/eastern-montana-map-2051844.html

Overview:

Title: Eastern Montana (map)
Author: uncredited
Year: 1975
Type: Interior Art

Editions/Publications:

Unknown. Fade-Out (Unknown, uncredited, Orbit, ISBN-10: 1857238281, £6.99, 541 pages, Paperback, Novel)