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Aquifers and Groundwater | U.S. Geological Survey - USGS.gov
Groundwater, Water Table, Aquifers and Springs - The Geo Room
Spring (hydrology) - Wikipedia
Groundwater Photo Gallery | U.S. Geological Survey - USGS.gov
Different types of springs. In many cases springs are found where …
Groundwater Connection with Springs
Connections of different types of groundwater to spring.
Surface Water-Groundwater interaction - Student Materials