| Geyser | 1974-07-19 |
|---|---|
| Bear Den | 1110, 1150 |
| Congress Pool | 1058, 1634, 1800 |
| Echinus | 0910, 1047, 1207, 1333, 1458, 1624, 1750 |
| Harding | 1800 |
| Ledge | 0630, 1945 |
| Values for Old Faithful Area | 1974-07-19 |
|---|---|
| Astronomical Twilight Begin | 03:42 |
| Nautical Twilight Begin | 04:36 |
| Civil Twilight Begin | 05:21 |
| Sunrise | 05:56 |
| Sunset | 21:02 |
| Civil Twilight End | 21:37 |
| Nautical Twilight End | 22:22 |
| Astronomical Twilight End | 23:16 |
| Moon Illumination | 0.09% |