- Elevation
- 976 m
- Tallest summit within 25 miles
- Thornhill Butte1,405 m · 22.8 mi
- Nearest byway
- Missouri Breaks Back Country Byway0.6 mi off
- Sunset, June solstice
- 21:19local time
- Coordinates
- 47.7162, -109.1253
Hart Spring is a spring in Montana, at a recorded 976 m. Thornhill Butte stands 1,405 m to the east-northeast, 23 miles off. The nearest named place is White Horse Butte, a peak 1.9 miles away. Missouri Breaks Back Country Byway passes 0.6 miles off. 94 named places lie within 25 miles, 26 of them named summits.
- Elevation
- 976 m
Summits around it
The highest named summits within 25 miles of Hart Spring. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| Thornhill Butte | ENE 65° | 1,405 m | 22.8 mi |
| Williamson Butte | NNW 337° | 1,385 m | 22.9 mi |
| Goat Mountain | NNW 343° | 1,231 m | 21.6 mi |
| Sheepherder Peak | SSW 199° | 1,203 m | 24.4 mi |
| Saddle Rock | NW 322° | 1,202 m | 23.3 mi |
| Gumbo Butte | N 355° | 1,077 m | 20.5 mi |
| Woodhawk Hill | W 268° | 1,074 m | 3.9 mi |
| Bald Butte | SSW 198° | 1,060 m | 7.3 mi |
- 0.6 mi off the Missouri Breaks Back Country Byway
94 named places within 25 miles
- BLM: 3.5 mi
- BLM: 4.2 mi
- State Trust: 5.2 mi
- State Trust: 5.4 mi
- Sturgeon Island: 6.0 mi
- White Horse Butte: 1.9 mi
- Woodhawk Hill: 3.9 mi
- Reppe Butte: 5.5 mi
- Bald Butte: 7.3 mi
- Black Butte: 9.0 mi
- Bow Spring: 4.5 mi
- Linder Spring: 6.0 mi
- Lewis Spring: 7.5 mi
- Sulphur Spring: 9.2 mi
- Sourdough Spring: 9.4 mi
- Gilmore Cabin River Stop: 8.0 mi
- Winifred Museum: 15.9 mi
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 07:20 | 18:49 | 19:29 |
| June solstice | 05:19 | 20:31 | 21:19 |
| September equinox | 07:04 | 18:35 | 19:16 |
| December solstice | 08:03 | 15:34 | 16:28 |
Local time (America/Denver).
Months averaging 50–80 °F: May–Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | 21 | 24 | 34 | 43 | 52 | 61 | 69 | 68 | 57 | 44 | 33 | 24 |
| Precip in | 0.6 | 0.3 | 0.8 | 1.5 | 2.8 | 3.3 | 1.9 | 1.5 | 1.2 | 1.3 | 0.6 | 0.5 |
1991–2020 U.S. Climate Normals, NOAA NCEI — Winifred, 16 mi away.
Location and category confirmed against OpenStreetMap.
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