| Note: | Small mud geyser along south side of spur boardwalk at Thumb Paint Pots, West Thumb Geyser Basin. Janet Jones and I referred to it as "WT-Mud." Though larger eruptions had been reported by rangers, the eruptions we saw varied from bubbling to less than 1 foot to vigorous bursting up to 3 feet high. Intervals ranged from 2 to 5 minutes and durations were 10 to 15 seconds. We noted that if a large bubble failed to trigger an eruption, the actual eruption that followed would be more powerful. Here are the times I recorded: 1147, 1149:38, 1152:04, 1155:38, 1159:08, 1202:46 (break) 1232:50, 1236:03, 1239:56, 1241:06, 1243:08, 1247:38, 1252:42. |
