| Geyser | 1967-06-19 |
|---|---|
| Blue | 1020, 1117, 1630 |
| Cistern Spring | 0915, 1200 |
| Constant | 1508, 1527 |
| Dark Cavern | 1500 |
| Echinus | 0915, 1007, 1101, 1154, 1244, 1338, 1434, 1525, 1618, 1716 |
| Harding | 0800 |
| Steamboat | 0800 |
| Values for Old Faithful Area | 1967-06-19 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:10 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 88.55% |