Assertion: high plain aquifer | /r/CreatedBy | debra spahr
Facets:
value: originally
type: MANNER
Source sentences:
text: The exterior boundary, defining the extent of the aquifer, was acquired through a previously digitized 1:1,000,000-scale map of the High Plains aquifer that was originally created by Donald Schild and Debra Spahr as part of the Regional Aquifer Systems Analysis (RASA) program.