Nests: Building, Structure, and Maintenance

Home, home building, and home improvement. Pogonomyrmex ants and their nests , at various locations in North America.
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Pogonomyrmex salinus

● 9.3 km / 5.8 miles north of Madras [Jefferson Co], OR USA [el. 738 m / 2423 ft] view location in Google Maps » ● 7/21/09 7:15AM

Built on a slope, this gravel covered Pogonomyrmex salinus nest in central Oregon measured about 60 cm / 2 feet wide, on its longest axis. There were several similar dome/cone shaped nests on this east-facing slope - optimally placed to receive direct sunlight in the morning.