| Geyser | 1967-07-30 |
|---|---|
| Cistern Spring | 0800, 1325 |
| Echinus | 0838, 0927, 1017, 1103, 1318, 1400, 1523, 1603, 1642 |
| Tantalus | 1100-1525, 1800 |
| Values for Old Faithful Area | 1967-07-30 |
|---|---|
| Astronomical Twilight Begin | 04:02 |
| Nautical Twilight Begin | 04:51 |
| Civil Twilight Begin | 05:34 |
| Sunrise | 06:07 |
| Sunset | 20:51 |
| Civil Twilight End | 21:25 |
| Nautical Twilight End | 22:07 |
| Astronomical Twilight End | 22:56 |
| Moon Illumination | 42.98% |