"Massacre at Grand Canyon") is a 1964 Italian Spaghetti Western filmed in Croatia starring James Mitchum, Milla Sannoner, and George Ardisson.

Wes Evans has completed his quest in finding and killing the Slade brothers, who murdered his father, the sheriff of Arriba Mesa.

Wes, who worries for Nancy, negotiates a truce: Whitmore will refrain from pushing through and the Dancers will send off the Manson gang.

However, Tully finds Flake and they besiege the prison and leave men to hold Wes pinned while they attack Whitmore’s force.

Tully tries to set fire to the disputed grassland, but he is killed by Fred, a farmer who earlier had lost a leg in the range war.