She’s going…
Final issue of Spicy Adventure, this entire issue can be downloaded here
British science fiction digest pulp magazine from 1956, which reprinted stories (and the cover) from Planet Stories magazine.
Final issue
Final issue before being re-branded as Speed Mystery
Novel Of Wildcat Woman And A Hoot-Owl Man On Señor Satan’s Range
Also featuring Saddle And Ride! I suspect that this is an Anderson cover.