English: This map depicts the then-proposed critical habitat designation for the grotto sculpin (Cottus specus), an endangered cavefish endemic to Missouri. The document the map is sourced from indicates the original sources of the data: "The map was developed from National Geographic USA Topographic maps . . . Upstream and downstream limits for critical habitat surface stream units were identified by degree, minute, second. Extent for critical habitat underlying recharge areas was defined by spatial data layers of recharge area delineations by Moss and Pobst (2010). The maps in this entry, as modified by any accompanying regulatory text, establish the boundaries of the critical habitat designation. The coordinates or plot points or both on which each map is based are available to the public at the Service’s internet site http://www.fws.gov/midwest/Endangered, http://www.regulations.gov at Docket No. FWS–R3– ES–2012–0065, and at the field office responsible for this designation. You may obtain field office location information by contacting one of the Service regional offices, the addresses of which are listed at 50 CFR 2.2."