Data-Collection Points Along Transects and Around Perimeter at Littlefield Lake, Audubon County, Iowa

Point coverage of bathymetry data for Littlefield Lake in Audubon Co., Iowa. The U.S. Geological Survey conducted a bathymetric survey of Littlefield Lake in 2004.爱荷华州奥杜邦县利特菲尔德湖的水深测量数据点位覆盖情况。美国地质调查局（U.S. Geological Survey）于2004年对利特菲尔德湖开展了水深测量作业。