| Interval Count | 100 |
| Min | 4m |
| Max | 325d 20h 14m |
| Mean | 21d 10h 35m |
| Median | 1d 20h 11m |
| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
|---|---|---|---|---|
| 20690 | 14 Jan 2022 @ 1041 | --- | Graham | Full and pulsing with some weak splashes. |
| 14766 | 29 Jun 2020 @ 0943 | --- | steve | Tried to erupt but didn’t quite make it. |
| 11657 | 08 Jun 2019 @ 1536 | --- | Graham | First time I have seen it not ie. |
| 8063 | 03 May 2018 @ 1144 | --- | Micah Kipple | Pulsing and roiling. |
| 5480 | 28 Aug 2017 @ 0944 | --- | udo | Doming about an inch and overflowing |
| 3529 | 22 Aug 2016 @ 1401 | --- | udo | Off after Beehive erupted. |
| Entry | Source | Link | Comment |
|---|---|---|---|
| 27 Jul 2017 @ 1709 | JSJ | https://www.youtube.com/watch?v=X4dGm95Hk40#t=2m12s | Video (time stamp 2:12 to the end) showing Ballcap Geyser's 5:09 to 5:11 PM eruption on 27 July 2017. |
| 27 Jul 2017 @ 1654 | JSJ | https://www.youtube.com/watch?v=X4dGm95Hk40#t=0m29s | Video (time stamp 0:29 to 2:11) showing Ballcap Geyser's 4:54 to 4:59 PM eruption on 27 July 2017. |
| 09 Jul 2014 @ 1756 | kcmule | http://www.coloradobills.com/yellowstone/PLTBC1755.07092014.flv |