Operating. . .
| Geyser: | Guardian |
| Date/Time From: | 1972-06-18 @ 1015 |
| Date/Time To: | 1972-06-18 @ 1035 |
| Entrant: | research-mab |
| Observer: | 1972 log |
| Time Entered: | 2017-09-13 11:07:48 |
| Time Updated: | 2017-09-16 20:00:44 |
| Time Uploaded: | 2017-10-02 14:45:06 |
| Submitted to: | Geysertimes.org |
| Note: | 06/18/1972 Guardian Geyser played 3 times; the first one was not seen but it washed away the marker & was apparently very near the time of the beginning of the eruption of Valentine. The second was at 10:30 for 2 minutes, the third at 1035 for 2m15s, the earlier one was again approximately twice as powerful as the last. |