● Catalina State Park, Tucson [Pima Co], AZ USA [el. 800 m / 2625 ft] view location in Google Maps » ● 11/02/10 10:11AM sunny, air temp: 26°C / 78°F This trail of foraging A. versicolor workers was about 6 m / 15 feet in length, and can be seen here traversing the base of a concrete curb. The ground is covered with mesquite leaflets - these also made up the bulk of the returning workers' cargo. - Pogolumina - Pogonomyrmex Harvester Ants of North America