94 Figure 55—Numbers of species closely associated with the Owyhee Uplands ERU, by 4th-code hydrologic unit in the basin assessment area (see Marcot and others 1997 for list of species). ICBEMP 4th field hydrologic units for species = 8 only State boundaries Basin boundary 4th field hydrologic units Species = 7 Species = 8 Species = 6 Species = 4 Species = 5 Species = 3 Species = 1 Species = 2 Species = 0 Legend 95 Figure 56—Numbers of species closely associated with the Northern Great Basin ERU, by 4th-code hydrologic unit in the basin assessment area (see Marcot and others 1997 for list of species). ICBEMP Basin boundary 4th field hydrologic units State boundaries Species = 3 Species = 1 Species = 2 Species = 0 Legend