| Geyser | 1967-08-29 |
|---|---|
| Mud Spring | 1200 |
| Tantalus | 1800 |
| Veteran | 1035, 1107, 1515 |
| Values for Old Faithful Area | 1967-08-29 |
|---|---|
| Astronomical Twilight Begin | 04:56 |
| Nautical Twilight Begin | 05:35 |
| Civil Twilight Begin | 06:11 |
| Sunrise | 06:42 |
| Sunset | 20:06 |
| Civil Twilight End | 20:36 |
| Nautical Twilight End | 21:13 |
| Astronomical Twilight End | 21:52 |
| Moon Illumination | 40.03% |