Z01621400 USGS H01621400 3825520785302005151660SW020700055.44 1260.00 N01621400 BLACKS RUN AT HARRISONBURG, VA Y01621400 301621400 19490815 1920 11.20 301621400 19500913 710 6.06 301621400 19501207 570 5.30 301621400 19511221 490 4.85 301621400 19530323 485 4.80 301621400 19540301 325 4.04 301621400 19541015 990 8.05 301621400 19560315 320 4.00 301621400 19570405 235 3.65 301621400 19580728 385 4.30 301621400 19590930 500 4.89 301621400 19600508 555 5.20 301621400 19610225 515 4.96