Mile 299 North Dakota - South Dakota boundary monument
historic site
- Built
- 1891
- Material
- quartzite
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 06:55 | 18:24 | 19:04 |
| June solstice | 05:01 | 20:00 | 20:46 |
| September equinox | 06:39 | 18:11 | 18:51 |
| December solstice | 07:31 | 15:19 | 16:09 |
Local time (America/Denver).
45.94511, -102.76703
Elevation 821 m (modelled from terrain)