| Geyser | 1976-10-11 |
|---|---|
| Beehive | 1032 |
| Castle | 1350 ie |
| Fountain | 1655 ie |
| Grand | 1330 |
| Great Fountain | 1612 |
| Old Faithful | 0845 long, 0955 short, 1102 short, 1212 long, 1327 long, 1438 short, 1539 long, 1649 short |
| Riverside | 1257 |
| Values for Old Faithful Area | 1976-10-11 |
|---|---|
| Astronomical Twilight Begin | 05:57 |
| Nautical Twilight Begin | 06:31 |
| Civil Twilight Begin | 07:04 |
| Sunrise | 07:33 |
| Sunset | 18:45 |
| Civil Twilight End | 19:14 |
| Nautical Twilight End | 19:48 |
| Astronomical Twilight End | 20:22 |
| Moon Illumination | 91.89% |