| Geyser | 1967-07-10 |
|---|---|
| Blue | 1545 |
| Echinus | 0805, 0955, 1045, 1135, 1224, 1405, 1455, 1545, 1636, 1726 |
| Valentine | 0730 A |
| Values for Old Faithful Area | 1967-07-10 |
|---|---|
| Astronomical Twilight Begin | 03:27 |
| Nautical Twilight Begin | 04:25 |
| Civil Twilight Begin | 05:12 |
| Sunrise | 05:48 |
| Sunset | 21:08 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:31 |
| Astronomical Twilight End | 23:30 |
| Moon Illumination | 7.69% |