Z09306050 USGS H09306050 3947381081340000808103SW140500066.61 6646.00 N09306050 SCANDARD GULCH NEAR RIO BLANCO, CO. Y09306050 309306050 1974 0.00Bm 309306050 19750106 0.885 1.22 309306050 19760318 6.00 1.49 309306050 19780729 9.10 1.71 309306050 1979 0.00Bm 309306050 19800219 0.0112 309306050 19810717 8.00 1.67