| Geyser | 2000-01-07 |
|---|---|
| Giantess | 1327 |
| Grand | 0411 E, 1502 E |
| Great Fountain | 1155 E, 2213 E |
| Values for Old Faithful Area | 2000-01-07 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:26 |
| Sunrise | 07:59 |
| Sunset | 16:59 |
| Civil Twilight End | 17:32 |
| Nautical Twilight End | 18:09 |
| Astronomical Twilight End | 18:44 |
| Moon Illumination | 0.25% |