| Date: | 2021-07-12 |
| Time: | 1820:18 |
| Geyser: | Old Tardy |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 2m46s |
| Standardized Duration: | 2m 46s |
| Time Entered: | 2021-07-12 18:20:49 |
| Time Updated: | 2021-07-12 19:01:29 |
| Time Uploaded: | 2021-07-12 19:01:29 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Similar strength as previous eruption; not sure if any follow-up occurred as cam was on Old Faithful for its 1848 eruption. |