| Date: | 2020-07-18 |
| Time: | 1053 |
| Geyser: | Grotto |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | <7h58m |
| Standardized Duration: | <7h 58m |
| Time Entered: | 2020-07-18 10:54:03 |
| Time Updated: | 2020-07-19 03:59:58 |
| Time Uploaded: | 2020-07-19 03:59:58 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | marathon; still ie 1217, 1245, 1317, 1338, 1404, 1432, 1500, 1530, 1544, 1647 (daytime captures), 1707, 1816, 1836. Done by 1851. |