| Geyser | 1975-01-24 |
|---|---|
| Castle | 1450 ie |
| Daisy | 1610 |
| Grand | 1322 ie |
| Old Faithful | 1106 long, 1227 short, 1317 long, 1424 short, 1532 long, 1640 long |
| Riverside | 1112 |
| Splendid | 1610 |
| Values for Old Faithful Area | 1975-01-24 |
|---|---|
| Astronomical Twilight Begin | 06:08 |
| Nautical Twilight Begin | 06:43 |
| Civil Twilight Begin | 07:18 |
| Sunrise | 07:50 |
| Sunset | 17:20 |
| Civil Twilight End | 17:52 |
| Nautical Twilight End | 18:27 |
| Astronomical Twilight End | 19:02 |
| Moon Illumination | 85% |