| Date: | 2015-05-20 |
| Time: | 1656 |
| Geyser: | Round Spring-Geyser |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2015-05-20 23:45:07 |
| Time Uploaded: | 2015-05-20 23:45:07 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Frequent eruptions, with pauses, from 1656 to 1717, then quiet. |