| Geyser | 1976-10-29 |
|---|---|
| Beehive | 1717 |
| Castle | 1235 ie |
| Fountain | 1012 ie |
| Grand | 1200 |
| Great Fountain | 1138 ie |
| Old Faithful | 0734, 0842, 1007 long, 1116 long, 1231 short, 1321 long, 1440 long, 1548 short, 1640 long, 1754 long |
| Values for Old Faithful Area | 1976-10-29 |
|---|---|
| Astronomical Twilight Begin | 06:19 |
| Nautical Twilight Begin | 06:53 |
| Civil Twilight Begin | 07:27 |
| Sunrise | 07:57 |
| Sunset | 18:16 |
| Civil Twilight End | 18:46 |
| Nautical Twilight End | 19:20 |
| Astronomical Twilight End | 19:54 |
| Moon Illumination | 42.82% |