Trails › North America › United States of America › Montana › Beaverhead-Deerlodge National Forest
Four Mile Basin
Four Mile Basin other trails nearby (tap a dot to open it)
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USGS National Digital Trails (US public domain) · OpenStreetMap · Basemap: OpenFreeMap (OpenMapTiles, © OSM contributors).
7-day forecast
Open-Meteo (CC BY 4.0)Best time to hike
Best months: Jun–Sep · highs 14–20 °C (57–68 °F)
- J-5°-14°30
- F-4°-14°29
- M0°-11°46
- A3°-8°57
- M8°-4°101
- J14°1°112
- J20°5°67
- A20°5°64
- S14°0°59
- O6°-5°43
- N-2°-11°41
- D-6°-15°35
Average high °C · low °C · precipitation mm per month. Highlighted: best months.
How we pick months
Best months are those where the 1981–2010 average daily high is 10–27 °C (50–81 °F), the average overnight low is 0 °C (32 °F) or warmer, and average precipitation is 200 mm (7.9 in) or less. Values are long-term monthly averages for the ~1 km cell at the trail point on the map, from CHELSA V2.1 climatologies (Karger et al., CC0), not a forecast. Higher or more exposed parts of a route can be colder, wetter or snowier.
Trail facts
- Length
- 3.9 km · 2.4 mi (agency length field)
- Source
- USGS National Digital Trails (US public domain)
- Managed by
- US Forest Service
- Data from
- U.S. Forest Service
- Nearest town
- 23 km W of Anaconda (Deer Lodge County, Montana) · GeoNames
- Park or forest
- Beaverhead-Deerlodge National Forest
- Connects to
- Twin Lakes (at its start or end)
- Best months
- Jun–Sep
- Country
- United States of America
- Region
- Montana
- Continent
- North America
- Route centre
- 46.0920, -113.2334
How it’s scored
Hikers can rate difficulty from 1 to 10 (1 = flat, short, easy walk for anyone; 3 = gentle hills, a little effort; 5 = moderate climbs, some fitness needed; 7 = steep or long, solid fitness required; 10 = extremely strenuous or technical; long steep climbing; experienced hikers only). The community average is shown once at least 3 people have rated the trail; until then the official or computed score is used when we have one.