The dataset consists of GPS coordinates for benthic invertebrate collections made in the St. Louis River Estuary in 2011 through 2013, and information on whether and how many faucet snail individuals were found. This dataset is associated with the following publication: Trebitz , A., G. Shepard, V. Brady, and K. Schmude. The non-native faucet snail (Bithynia tentaculata) makes the leap to Lake Superior. JOURNAL OF GREAT LAKES RESEARCH. International Association for Great Lakes Research, Ann Arbor, MI, USA, 41(4): 1197-1200, (2015).