| Geyser | 1970-05-25 |
|---|---|
| Castle | 0150 |
| Grand | 0700, 1520 |
| Old Faithful | 0820 short, 0915 long, 1028 short, 1118 long, 1323 short, 1458 short, 1538 short, 1650 short |
| Riverside | 0745, 1345 |
| West Flood | 1620 |
| Values for Old Faithful Area | 1970-05-25 |
|---|---|
| Astronomical Twilight Begin | 03:31 |
| Nautical Twilight Begin | 04:26 |
| Civil Twilight Begin | 05:11 |
| Sunrise | 05:46 |
| Sunset | 20:54 |
| Civil Twilight End | 21:29 |
| Nautical Twilight End | 22:14 |
| Astronomical Twilight End | 23:08 |
| Moon Illumination | 79.2% |