Figure 1From: Gene flow and population structure in the Mexican blind cavefish complex (Astyanax mexicanus)Map of the Sierra de El Abra region showing all the cave and surface collection sites. Colored boxes delineate major geographical regions (labeled below), as following: El Abra region: O1 - O8 (blue & green circles); Guatemala region: N1 - N2 (red circles); Micos region: N3 (purple circles); Surface localities S1 - S4 (yellow circles). Light blue lines represent different river systems in the area.Back to article page