| Geyser | 1970-05-10 |
|---|---|
| Beehive | 1206 |
| Castle | 1320 |
| Grand | 1315 |
| Old Faithful | 0810 long, 0927 short, 1021 long, 1131 long, 1250 short, 1344 long, 1504 long, 1607 short |
| Values for Old Faithful Area | 1970-05-10 |
|---|---|
| Astronomical Twilight Begin | 03:59 |
| Nautical Twilight Begin | 04:46 |
| Civil Twilight Begin | 05:28 |
| Sunrise | 06:01 |
| Sunset | 20:37 |
| Civil Twilight End | 21:10 |
| Nautical Twilight End | 21:52 |
| Astronomical Twilight End | 22:39 |
| Moon Illumination | 21.37% |