| Interval Count | 100 |
| Min | 2m |
| Max | 286d 7h 39m |
| Mean | 4d 10h 29m |
| Median | 8h 27m |
| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
|---|---|---|---|---|
| 15419 | 06 Aug 2020 @ 1606 | --- | JSJ | Three weak eruptions at 1609 & 1610-earliest 1611 & 1611. Stopped taking data for a while after that. If it hasn't been said before, Delta Geyser's eruptions occur in response to water level rises in West Triplet Geyser. At least, they did today. |
| 13426 | 27 Aug 2019 @ 1935 | --- | Micah Kipple | Added to the Geysertimes Data Base. This is a vent in the "Sputnik" area of Grand but is separate from Sputnik itself. It is located to the left of Sputnik. |
| Entry | Source | Link | Comment |
|---|---|---|---|
| 01 Aug 2020 @ 1803 | JSJ | https://www.youtube.com/watch?v=vKx9kJIK_Ho | Clip 1 of this video compilation shows Delta Geyser erupting in the near-earliest evening of 1 August 2020. The rest of the video - clips 2 to 19 - shows Delta Geyser eruptions during the afternoon of 6 August 2020. |