| Geyser | 1976-03-06 |
|---|---|
| Castle | 1700 |
| Depression | 1232 |
| Grand | 1410 |
| Old Faithful | 0918 long, 1030 short, 1152 short, 1300 long, 1415 short, 1501 long |
| Riverside | 1630 |
| Values for Old Faithful Area | 1976-03-06 |
|---|---|
| Astronomical Twilight Begin | 05:14 |
| Nautical Twilight Begin | 05:48 |
| Civil Twilight Begin | 06:21 |
| Sunrise | 06:50 |
| Sunset | 18:18 |
| Civil Twilight End | 18:47 |
| Nautical Twilight End | 19:20 |
| Astronomical Twilight End | 19:54 |
| Moon Illumination | 23.45% |