| Geyser | 1975-05-25 |
|---|---|
| Africa | 1800 |
| Beehive | 1443 |
| Beehive's Indicator | 1413 |
| Castle | 1435 ie |
| Echinus | 1539 |
| Grand | 0955, 1645 ie |
| Great Fountain | 1620 ie |
| Riverside | 1005 ie, 1604 |
| Round | 1100 |
| Valentine | 1600 |
| Whirligig | 1800 |
| Values for Old Faithful Area | 1975-05-25 |
|---|---|
| Astronomical Twilight Begin | 03:31 |
| Nautical Twilight Begin | 04:26 |
| Civil Twilight Begin | 05:11 |
| Sunrise | 05:46 |
| Sunset | 20:53 |
| Civil Twilight End | 21:28 |
| Nautical Twilight End | 22:13 |
| Astronomical Twilight End | 23:08 |
| Moon Illumination | 100% |