Screenwriter Burt Kennedy's line, spoken by Pernell Roberts, "There are some things a man just can't ride around," is an echo of a virtually identical line used by Randolph Scott in The Tall T (1957), another entry in the Scott/Brown/Boetticher series.
Included among the American Film Institute's 2001 list of 400 movies nominated for the top 100 Most Heart-Pounding American Movies.
The "pointy bra" Karen Steele wears throughout the movie was not invented yet, and was the fashion in the late 1950s.