| Geyser | 1971-06-03 |
|---|---|
| Beehive | 1050 |
| Castle | 1325 |
| Grand | 0925, 1915 |
| Great Fountain | 0828, 1715 |
| Old Faithful | 0830 short, 0922 long, 1040 short, 1130 long, 1255 long, 1405 short, 1515 short, 1633 short |
| Riverside | 0835 |
| Values for Old Faithful Area | 1971-06-03 |
|---|---|
| Astronomical Twilight Begin | 03:19 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:40 |
| Sunset | 21:01 |
| Civil Twilight End | 21:37 |
| Nautical Twilight End | 22:24 |
| Astronomical Twilight End | 23:23 |
| Moon Illumination | 70.47% |