| Geyser | 1965-06-17 |
|---|---|
| Basin | 1800 |
| Blue | 0800 ie |
| Dark Cavern | 1800 |
| Echinus | 0920, 1125, 1346 |
| Steamboat | 0800-1430 |
| Valentine | 1800 |
| Values for Old Faithful Area | 1965-06-17 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:37 |
| Sunset | 21:10 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:35 |
| Astronomical Twilight End | 23:38 |
| Moon Illumination | 91.02% |