He had the requisite looks, charm, and talent — but it wasn’t until 1969 that Robert Redford truly broke out, guns blazing, as a Hollywood stud. That was the year of Butch Cassidy and the Sundance Kid, and also the year that LIFE photographer John Dominis spent a week with the mustached man’s man, as the star mixed business and pleasure at his homes in Utah and New York.
Only a few of the photos Dominis captured made it into the February 1970 LIFE cover story trailing Redford — but now, as the iconic actor/filmmaker turns 75 (on August 18, 2011), LIFE.com presents never-before-published photos from that amazing shoot: Redford in the mountains on horseback, strolling around Times Square, and always, always taking care of business.
Happy Birthday Robert Redford! — Robert Redford: UNPUBLISHED Photos