You know by now that Robert L. Folk passed away, peacefully in his sleep on June 4, 2018. Dr. Folk, recognized as a premier sedimentary geologist, had a most successful teaching and research career at the Geology Department of the University of Texas at Austin. Two of his Ph.D. students, Dr. Miles O. Hayes and Dr.
The U.S. Geological Survey’s National Water Information System (NWIS) created an interactive tool that maps water resources data at over 1.5 million sites across the country. The search tool allows the user to find sites by street address, location name, site number, state/territory, and watershed region. The sites are sorted into five main categories: