About erosion results of 257
65:25 25:24 11:56 11:12 04:41 05:04 08:20 06:14 05:24 04:49 09:07 05:08 83:58 17:35 07:08 06:32 12:44 06:43 51:02 06:33 05:35 06:22 06:11 08:30 06:28 10:16 06:00 06:51 24:23 07:55 07:47 09:49 12:06 10:31 06:21 21:20 10:01 08:10 10:14 10:01 08:01 09:36 10:01 10:01 09:03 10:12