Calculating. . .
| Geyser: | Arch Steam Vent |
| Date/Time: | 1974-06-07 @ 1800 |
| Entrant: | research-mab |
| Observer: | 1974 log |
| Time Entered: | 2017-09-04 08:48:05 |
| Time Uploaded: | 2017-10-02 14:45:06 |
| Submitted to: | |
| Note: | 06/07/1974 1655 Visited Arch Steam Vent- definite evidence of eruption w/ hot water in runoff channel. Placed pine-needle marker in runoff channel. {during day - no time noted} |