Mile 291½ North Dakota - South Dakota boundary monument
Mile 291½ North Dakota - South Dakota boundary monument is a historic site in North Dakota, at a modelled elevation of 850 m. Mud Butte stands 958 m to the west-southwest, 20 miles off. The nearest named place is Mile 292 North Dakota - South Dakota boundary monument, a historic site 0.5 miles away. 50 named places lie within 25 miles, 18 of them named summits.
What the record says
- Built
- 1891
- Material
- quartzite
How to reach it
50 named places within 25 miles
- Mile 292 North Dakota - South Dakota boundary monument: 0.5 mi
- Mile 291 North Dakota - South Dakota boundary monument: 0.5 mi
- Mile 292½ North Dakota - South Dakota boundary monument: 1.0 mi
- Mile 293 North Dakota - South Dakota boundary monument: 1.5 mi
- Mile 290 North Dakota - South Dakota boundary monument: 1.5 mi
- Wolf Butte: 2.3 mi
- Kid Rich Butte: 2.6 mi
- Castle Butte: 4.1 mi
- Big Butte: 4.5 mi
- White Butte: 12.1 mi
- Mirror Lake Park: 3.8 mi
- Vobejda Lake State Game Production Area: 5.5 mi
- Dog Town State Game Management Area: 19.1 mi
- North Lemmon Park: 21.2 mi
- Boss Cowman Square: 21.7 mi
- Dakota Buttes Museum: 3.7 mi
- Grand River Museum: 21.6 mi
- Lemmon Petrified Wood Museum: 21.8 mi
- Petrel: 16.1 mi
- Cowboy Riding a Dinosaur: 21.6 mi
Summits around it
The highest named summits within 25 miles of Mile 291½ North Dakota - South Dakota boundary monument. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| Mud Butte | WSW 248° | 958 m | 20.3 mi |
| Wolf Butte | NNW 332° | 927 m | 16.4 mi |
| Rocky Hills | SSW 193° | 910 m | 23.0 mi |
| White Butte | ESE 123° | 888 m | 12.1 mi |
| Cow Butte | W 280° | 875 m | 16.3 mi |
| Castle Butte | E 96° | 869 m | 4.1 mi |
| Long Butte | NE 50° | 854 m | 22.0 mi |
| Pearl Butte | NE 42° | 850 m | 13.7 mi |
When to go
Light through the year
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 06:54 | 18:24 | 19:03 |
| June solstice | 05:01 | 19:59 | 20:45 |
| September equinox | 06:38 | 18:11 | 18:50 |
| December solstice | 07:30 | 15:18 | 16:09 |
Local time (America/Denver).
Climate normals
Months averaging 50–80 °F: May–Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | 17 | 20 | 30 | 42 | 53 | 63 | 70 | 68 | 59 | 44 | 30 | 21 |
| Precip in | 0.4 | 0.5 | 0.8 | 1.6 | 2.6 | 3.2 | 2.3 | 1.9 | 1.4 | 1.5 | 0.5 | 0.6 |
1991–2020 U.S. Climate Normals, NOAA NCEI — Hettinger EXP STN, 4 mi away.
Where this comes from
Location and category confirmed against OpenStreetMap.
OpenStreetMapOpenStreetMap element node/10684648587
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