Maravene Bahnsen, 3, licks the last bit of frozen yogurt her parents purchased Saturday from the Wandering Cow food truck in the background. Her brother,
Maravene Bahnsen, 3, licks the last bit of frozen yogurt her parents purchased Saturday from the Wandering Cow food truck in the background. Her brother, Brodie, is behind her. Boulder's mobile food truck and food cart summer program kicked off Saturday. ( CLIFF GRASSMICK )