The Cubs have been a part of the Cactus League since 1952 (with the exception of a one-year stint in Long Beach, California). From 1952 to 1965 they trained in Mesa. After that year in California, they returned to Arizona, taking up in Scottsdale, a run from 1967 - 1978. In 1979 they went back to Mesa and have been there ever since. Only the Giants have spent more time in Arizona than the Cubs.
The Cactus League Legends set has 30 cards. Three of them are Cubs.
Ernie was given the first card in the set. Notice that Topps used an era-appropriate Cubs logo.
This year will be Bryant's sixth spring training in Arizona, but he's already a legend. OK, sure.
This looks like it could actually be a picture from spring training, since Fergie is wearing a rubber jacket under his jersey. Gotta work up a sweat and lose those pounds gained during the off-season.
I did a little searching at Getty Images and
it is spring training.