Percolating. . .
| Geyser: | Echinus |
| Date/Time: | 1961-06-28 @ 1200 |
| Entrant: | research-mab |
| Observer: | Summary of Thermal Log Norris June 28, 1961 |
| Time Entered: | 2023-12-30 04:27:21 |
| Time Uploaded: | 2023-12-30 04:27:21 |
| Submitted to: | Geysertimes.org |
| Note: | - no times noted - Echinus has been playing quite regularly with an interval varying from one hour and fifteen minutes to three hours. The interval is apparently dependent on the duration of the play - - the duration varying from two to six minutes. The height of the eruption varies from 30 to 100 feet. Approximately 50 eruptions have been observed. |