Columbia subject headings:
Borings--Rhode Island--Maps.
Geology--Rhode Island--Maps.
Groundwater--Rhode Island--Maps.
Hydrogeology--Rhode Island--Maps.
Maps.
Quadrangle maps.
Rhode Island--Maps.
Thematic maps.
Water-supply--Rhode Island--Maps.
Wells--Rhode Island--Maps.
Harvard subject headings:
Groundwater--Rhode Island--Maps.
Rhode Island--Maps.
Princeton subject headings: