99
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
100
Figure 57—Numbers of amphibian species closely associated with the Columbia River Gorge, 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 = 4
Species = 1
Species = 2
Species = 0
Legend