Driftless Area National Wildlife Refuge
The "driftless area" of the Upper Midwest derives its name from the fact that it was unglaciated during the most recent glacial event about 12,000 years ago. Glaciers surrounded but did not pass over this land. Driftless Area National Wildlife Refuge was established in 1989 to protect the Federally endangered Iowa Pleistocene snail and threatened northern monkshood plant. Habitats that support these species are also home to other glacial-relict snail and plant species that require specific cool moist conditions to live. These species occur only on algific talus slopes or moist sandstone cliffs. In these fragile places, constant cold air exiting from a cliff or talus slope creates a unique microclimate, one that may be considerably different from areas only meters away.
The refuge office is located at the McGregor District of the Upper Mississippi River National Wildlife and Fish Refuge. The office and visitor contact station are located along Business Hwy 18 North, between the towns of Marquette and McGregor, Iowa.www.hobogrill.org