| Geyser | 1971-10-16 |
|---|---|
| Beehive | 1040 |
| Grand | 1610 ie |
| Lion | 0403 |
| Old Faithful | 0834, 0930 long, 1041 long, 1145 long, 1300, 1344 long, 1457 short |
| Values for Old Faithful Area | 1971-10-16 |
|---|---|
| Astronomical Twilight Begin | 06:02 |
| Nautical Twilight Begin | 06:36 |
| Civil Twilight Begin | 07:10 |
| Sunrise | 07:39 |
| Sunset | 18:38 |
| Civil Twilight End | 19:07 |
| Nautical Twilight End | 19:41 |
| Astronomical Twilight End | 20:15 |
| Moon Illumination | 8.31% |