California ground squirrels (Spermophilus beecheyi) live in loosely associated colonies in shared burrows, and are blamed for damage to the root systems of trees and crops. In order to understand the accuracy of this blame, I looked for spatial correlation between trees and burrow entrances in a small study plot. I mapped all trees and burrow entrances in the plot, and analyzed burrow entrance distribution, the correlation between burrow entrance and tree distribution, and the relationship of nearest burrow entrance and tree distance from sampling points. Burrow entrance distribution was significantly non-random in the sample plot, and there was a strong correlation between burrow entrance location and tree location. These data support the hypothesis that ground squirrels tend to make their burrows at the bases of trees. This also coincides with anecdotal reports by groundskeepers of ground squirrel distribution.