| Geyser | 1974-06-07 |
|---|---|
| Arch Steam Vent | 0800 A, 1800 |
| Bear Den | 1122 |
| Echinus | 1010, 1130, 1243, 1359, 1500 A, 1633 |
| Ledge | 1500 |
| Porkchop | 1800 |
| Rubble | 1800 |
| Veteran | 1800 |
| Vixen | 1800 |
| Values for Old Faithful Area | 1974-06-07 |
|---|---|
| Astronomical Twilight Begin | 03:14 |
| Nautical Twilight Begin | 04:15 |
| Civil Twilight Begin | 05:02 |
| Sunrise | 05:39 |
| Sunset | 21:05 |
| Civil Twilight End | 21:41 |
| Nautical Twilight End | 22:28 |
| Astronomical Twilight End | 23:29 |
| Moon Illumination | 94.89% |