| Geyser | 1967-06-18 |
|---|---|
| Cistern Spring | 0800 |
| Constant | 1540, 1638, 1648 |
| Echinus | 0859, 0952, 1045, 1135, 1317, 1407, 1457, 1549, 1638, 1729 |
| Harding | 0800 |
| Steamboat | 1200 |
| Values for Old Faithful Area | 1967-06-18 |
|---|---|
| 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 | 23:39 |
| Moon Illumination | 80.03% |