Assertion: bedrock aquifer | /r/CapableOf | yield usable quantities of water
Facets:
Source sentences:
text: All major bedrock aquifers, including those comprising the Cambrian-Ordovician aquifer system in Segment 9, crop out at the bedrock surface, but also extend into the subsurface and yield usable quantities of water in a much larger area than their outcrop, as in, for example, southwestern Minnesota and northwestern Iowa.