1. Water resources of the Grand Portage Indian Reservation, northeastern Minnesota Author/Creator: Ruhl, J. F., author Publication/Creation: Mounds View, Minnesota : U.S. Geological Survey, 1995 Resource Type: Computer File Access & Availability: Loading
2. Relation of fracture orientation to linear terrain features, anisotropic transmissivity, and seepage to streams in the karst Prairie du Chien group, southeastern Minnesota Author/Creator: Ruhl, J. F., author Publication/Creation: Mounds View, Minnesota : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
3. Quality of ground water around Vadnais Lake and in Lambert Creek watershed, and interaction of ground water with Vadnais Lake, Ramsey County, Minnesota Author/Creator: Ruhl, J. F., author Publication/Creation: Mounds View, Minnesota : U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
4. Hydrogeologic and water-quality characteristics of the Red River-Winnipeg aquifer, northwestern Minnesota Author/Creator: Ruhl, J. F., author Publication/Creation: St. Paul, Minnesota : Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Map Access & Availability: Loading