Helena-Lewis and Clark National ForestBeaverhead-Deerlodge National ForestBasin Cataract · Beaverhead-Deerlodge National ForestBeaverhead-Deerlodge National ForestHelena-Lewis and Clark National ForestForest Lake · Helena-Lewis and Clark National ForestTreasure Mt 2 · Helena-Lewis and Clark National ForestEndStart5 kmN ↑

Lava Mountain 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 17–23 °C (63–73 °F)

  1. J-4°-13°25
  2. F-2°-13°25
  3. M2°-9°37
  4. A7°-6°51
  5. M12°-1°97
  6. J17°3°111
  7. J23°7°65
  8. A22°7°54
  9. S17°2°55
  10. O9°-3°44
  11. N0°-9°35
  12. D-5°-14°26

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
5.3 km · 3.3 mi (agency length field)
Source
USGS National Digital Trails (US public domain)
Managed by
US Forest Service
Data from
U.S. Forest Service
Mountain
Lava Mountain (mountain, 2,299 m; GeoNames)
Mountain range
Boulder Mountains (Rocky Mountains › North American Cordillera; GMBA)
Nearest town
17 km W of Clancy (Jefferson County, Montana) · GeoNames
Park or forest
Helena-Lewis and Clark National Forest
Best months
Jun–Sep
Country
United States of America
Region
Montana
Continent
North America
Route centre
46.4435, -112.1994
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.

Nearest trails

distance from the trail centre

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