The Principal Aquifers of the United States


It’s an older map, but one I hadn’t seen before: the USGS’s map of the principal aquifers of the United States. [Christopher Tucker]

Previously: Global Groundwater Map.

Author: Jonathan Crowe

Jonathan Crowe blogs about maps at The Map Room. His essays and reviews have been published by AE, Calafia, The New York Review of Science Fiction, the Ottawa Citizen, Strange Horizons and He lives in Shawville, Quebec.