Reticulating splines. . .
| Geyser: | Other Geyser |
| Date/Time From: | 2015-05-21 @ 1700 |
| Date/Time To: | 2015-05-21 @ 1900 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Time Entered: | 2015-05-22 09:29:58 |
| Time Uploaded: | 2015-05-22 09:29:58 |
| Submitted to: | Geysertimes.org |
| Note: | Sand Spring (= 53 meters north of Pinwheel Geyser in Norris Porcelain Basin), or a major vent very close by, had at least 2 eruptions between 1700 and 1900. The first was significantly obscured by a large steam plume. I observed a definite, brief, decent-sized burst on the 2nd occasion. |