| Geyser | 1964-08-03 |
|---|---|
| Bear Den | 1332, 1608 A, 1800 |
| Blue | 0908 |
| Ebony | 0702, 1608 maj, 1800 |
| Echinus | 0716, 0839, 1002, 1127, 1252, 1418, 1545 |
| Steamboat | 0715-1310 |
| Valentine | 1340 |
| Values for Old Faithful Area | 1964-08-03 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 03:58 |
| Civil Twilight Begin | 04:39 |
| Sunrise | 05:12 |
| Sunset | 19:46 |
| Civil Twilight End | 20:18 |
| Nautical Twilight End | 21:00 |
| Astronomical Twilight End | 21:47 |
| Moon Illumination | 26.46% |