Dermacentor andersoni

• Also known as the Rocky Mountain wood tick
• Where found: Rocky Mountain states and southwestern Canada from elevations of 4,000 to 10,500 feet.
• Transmits: Rocky Mountain spotted fever, Colorado tick fever, and tularemia.
• Comments: Adult ticks feed primarily on large mammals. Larvae and nymphs feed on small rodents. Adult ticks are primarily associated with pathogen transmission to humans.

Rocky Mountain wood tick (rocky_mountain_wood_tick.jpg)

Map of the United States showing the approximate distribution of the Rocky mountain wood tick. The area effected is the Northwestern part of the country.