Map showing study region (dark orange rectangle) of Interior Alaska, centred around the city of Fairbanks, superimposed on map of the contiguous US states for scale. Original map by Laubenstein Ronald, U.S. Fish and Wildlife Service, is in the public domain.

  Part of: Booysen M, Sikes D, Bowser M, Andrews R (2018) Earthworms (Oligochaeta: Lumbricidae) of Interior Alaska. Biodiversity Data Journal 6: e27427.