Z01657300 USGS H01657300 3848570772016005151059SW020700103.59 N01657300 POPES HEAD CREEK NEAR FAIRFAX, VA Y01657300 301657300 1961 20.18 Bm 301657300 19620620 20.83 301657300 19630630 20.75 301657300 19640513 21.82 301657300 19670824 1900 22.96