Billingsley Creek WMA lies below the volcanic rim of the Snake River Plain in the Hagerman Valley. Billingsley Creek, the centerpiece of the WMA, provides open water to wintering waterfowl. Adjacent uplands shelter upland birds, particularly pheasants and quail.The creek is fed by seven springs that originate along the basalt rim rock. The Bliss Rapids Snail, listed as a threatened species under the Endangered Species Act, is present in four of these springs.