Currently, Maryland has a breeding population of black bears in the 4 westernmost counties (Garrett, Allegany, Washington, and Frederick), with the highest bear densities found in Garrett and western Allegany counties. Although evidence of a breeding population is confined to the western 4 counties, DNR receives several bear sightings and complaints in central and southern Maryland counties each year.
http://dnr2.maryland.gov/wildlife/Pages/hunt_trap/BlackBear.aspx
Yeah, and in my freaking back yard.