| Geyser | 1974-07-22 |
|---|---|
| Congress Pool | 1800 |
| Echinus | 0858, 1029, 1154, 1331, 1500, 1638 |
| Ledge | 1146, 1618 |
| Values for Old Faithful Area | 1974-07-22 |
|---|---|
| Astronomical Twilight Begin | 03:48 |
| Nautical Twilight Begin | 04:40 |
| Civil Twilight Begin | 05:24 |
| Sunrise | 05:59 |
| Sunset | 20:59 |
| Civil Twilight End | 21:34 |
| Nautical Twilight End | 22:18 |
| Astronomical Twilight End | 23:11 |
| Moon Illumination | 11.2% |