Blackmon (calf) was activated off the 10-day injured list ahead of Friday's game against the Mets, Thomas Harding of MLB.com reports.
Blackmon had a successful two-game rehab stint at Triple-A Albuquerque this week to clear the way for his return to the majors. The veteran outfielder is slashing .300/.356/.565 with 13 doubles, five triples and 10 home runs through 46 games and should resume his everyday role in right field for the Rockies.