We studied movements of 36 juvenile Mohave ground squirrels (Spermophilus mohavensis) during their first active season, until immergence into hibernation, a period that lasted from late May to late August. For all radiocollared individuals, the mean greatest distance between any 2 locations was 1,520 m for males (range 110 to 6,230 m) and 505 m for females (range 105 to 3,862 m). Eleven individuals (6 females, 5 males) with known litter affiliations were followed from their initial capture until inactive underground: males moved a mean distance of 2,920 m (range 0 to 6,230 m), and females moved a mean distance of 753 m (range 0 to 3,862 m) between their natal area and hibernation site. Ten individuals (8 males, 2 females) moved distances >1 km. Individuals making long-distance movements were likely to have traversed habitat that would be considered marginal for adult Mohave ground squirrels. Long-distance movement by juveniles might be critical for connecting local populations and recolonizing sites after local, drought-related extirpation.