| Geyser | 1931-06-24 |
|---|---|
| Dark Cavern | 0950, 1435 min, 1525 min |
| Ebony | 0820 |
| Ledge | 0935 min, 1040 min, 1120 min, 1200 min, 1400 min, 1430 min, 1520 min, 1635 min, 1900 min |
| Valentine | 1850 |
| Values for Old Faithful Area | 1931-06-24 |
|---|---|
| Astronomical Twilight Begin | 02:10 |
| Nautical Twilight Begin | 03:13 |
| Civil Twilight Begin | 04:02 |
| Sunrise | 04:39 |
| Sunset | 20:11 |
| Civil Twilight End | 20:48 |
| Nautical Twilight End | 21:37 |
| Astronomical Twilight End | 22:40 |
| Moon Illumination | 64.39% |