| Geyser | 1971-02-07 |
|---|---|
| Lion | 1150, 1505 |
| Old Faithful | 1145 long, 1305 short, 1352 long, 1503 short |
| Riverside | 1345 |
| Values for Old Faithful Area | 1971-02-07 |
|---|---|
| Astronomical Twilight Begin | 05:56 |
| Nautical Twilight Begin | 06:29 |
| Civil Twilight Begin | 07:04 |
| Sunrise | 07:34 |
| Sunset | 17:40 |
| Civil Twilight End | 18:10 |
| Nautical Twilight End | 18:45 |
| Astronomical Twilight End | 19:18 |
| Moon Illumination | 91.49% |