| Geyser | 1971-01-14 |
|---|---|
| Castle | 1215 |
| Fountain | 1120 |
| Great Fountain | 1135 |
| Old Faithful | 1225 short |
| Values for Old Faithful Area | 1971-01-14 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:56 |
| Sunset | 17:07 |
| Civil Twilight End | 17:40 |
| Nautical Twilight End | 18:16 |
| Astronomical Twilight End | 18:51 |
| Moon Illumination | 93.01% |