Bubbling. . .
| Geyser: | Mud Spring |
| Date/Time: | 1976-08-15 @ 1200 |
| Entrant: | research-mab |
| Observer: | 1976 Norris log |
| Time Entered: | 2023-12-09 16:23:56 |
| Time Uploaded: | 2023-12-09 16:23:56 |
| Submitted to: | Geysertimes.org |
| Note: | 08/15/1976 - no time noted - Root Pool and Green Dragon Spg & Muddy Spg. Both bubbling quite vigorously and quite turbid. A call to Old Faithful visitor center verified the hypothesis that the park had a slight tremor which caused the aforementioned change in B. Basin Spg activity. |