Z01576521 USGS H01576521 3959530761555004242071SW020503061.77 292.16 N01576521 Big Spring Run near Willow Street, PA Y01576521 301576521 19940926 357 7.48 301576521 19950525 331 7.33 301576521 19960809 279 7.16 301576521 19961108 236 6.82 301576521 19980321 1542 6.20 301576521 19990916 392 7.67 301576521 20000914 241 6.86 301576521 20010622 515 8.24