Z09503720 USGS H09503720 3509371121235000404005SW1506020214.90 6750. N09503720 HELL CANYON NEAR WILLIAMS, ARIZ. Y09503720 309503720 19651125 1080 4.78 309503720 19661206 955 4.56 309503720 19680224 139 2.32 309503720 19690125 955 4.59 309503720 19700315 91.0 2.04 309503720 19710804 133 2.29 309503720 19711226 910 4.47 309503720 19721019 960 4.60 309503720 1974 0.00Bm 309503720 1975 108Bm 2.14 Bm 309503720 1976 250Bm 1.55 Bm 309503720 19780301 1080 4.78 1966 309503720 19781218 220 2.68