Twin Sisters - Co.Trail 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: Jul–Aug · highs 14–16 °C (57–61 °F)
- J-7°-16°96
- F-6°-16°108
- M-3°-13°130
- A0°-10°102
- M5°-6°89
- J12°-1°74
- J16°4°159
- A14°3°176
- S11°-1°154
- O4°-7°120
- N-3°-14°104
- D-7°-17°105
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
- 16 km · 10 mi (agency length field)
- Source
- USGS National Digital Trails (US public domain)
- Managed by
- US Forest Service
- Data from
- U.S. Forest Service
- Mountain
- Twin Sisters (mountain, 3,968 m; GeoNames)
- Mountain range
- West-Central San Juan Mountains (San Juan Mountains › Southern Rocky Mountains; GMBA)
- Nearest town
- 14 km SW of Silverton (San Juan County, Colorado) · GeoNames
- Park or forest
- San Juan National Forest
- Connects to
- Engineer Mountain (at its start or end)
- Best months
- Jul–Aug
- Country
- United States of America
- Region
- Colorado
- Continent
- North America
- Route centre
- 37.7512, -107.7694
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 centreWest Lime Creek
0.3 mi · 0.4 km · San Juan National Forest
Deer Creek
1.5 mi · 2.4 km · San Juan National Forest
Coal Creek
2.7 mi · 4.3 km · San Juan National Forest
Engine Creek
3.0 mi · 4.8 km · San Juan National Forest
Engineer Mountain
3.2 mi · 5.2 km · San Juan National Forest
PASS
3.4 mi · 5.5 km · San Juan National Forest
All trails in Colorado → · All 36,834 trails in United States of America →