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San Isabel National Forest

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Recommended Routes in San Isabel National Forest - 28

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Favorite Approximately 13,800' up, less than a mile from the summit!
Difficult

Mt. Elbert

8.9 mi 14.4 km 4,410' Up 1344.26 m Up 4,410' Down 1344.07 m Down

Leadvil…, CO
Favorite Ice Mtn & The Three Apostles from Huron Pk with permission from BoulderTraveler
Intermediate/Difficult

Huron Peak

6.4 mi 10.2 km 3,301' Up 1006.19 m Up 3,301' Down 1006.03 m Down

Buena V…, CO
Favorite Sayres Mountain hides behind columbines in the early morning shade.
Difficult

La Plata Peak Out and Back

9.4 mi 15.1 km 4,276' Up 1303.2 m Up 4,276' Down 1303.18 m Down

Leadvil…, CO
Favorite La Plata peaks above the ridgeline on the Black Cloud Trail.
Difficult

Black Cloud Trail

10.9 mi 17.5 km 5,023' Up 1531.13 m Up 5,023' Down 1530.98 m Down

Leadvil…, CO
Favorite Shack up at 10,800 ft.
Difficult

Belford and Oxford

10.9 mi 17.5 km 5,670' Up 1728.35 m Up 5,670' Down 1728.32 m Down

Leadvil…, CO
Favorite The Turquoise Lake Trail varies from sandy beach to packed-sand trail. You just can't beat the views.
Difficult

Leadville Trail 100

103.6 mi 166.8 km 13,878' Up 4230.15 m Up 13,877' Down 4229.77 m Down

Leadville, CO
Favorite Belford, Oxford, and Missouri from the summit of Mt. Yale.
Intermediate/Difficult

Mt. Yale

8.8 mi 14.1 km 4,260' Up 1298.32 m Up 4,259' Down 1298.15 m Down

St. Elmo, CO
Favorite We made it to the top! Not bad for senior citizens!
Intermediate/Difficult

Midland Hill Out-and-Back

4.9 mi 7.9 km 1,586' Up 483.35 m Up 1,585' Down 483.1 m Down

Buena V…, CO
Favorite View from Mt. Massive's summit on a summer day.
Difficult

Mt. Massive

7.3 mi 11.8 km 3,857' Up 1175.56 m Up 3,857' Down 1175.49 m Down

Leadvil…, CO

San Isabel National Forest Running

  • 1,264 Miles 2,034 Kilometers of Trail
  • 28 Recommended Routes
  • 33 Easy Trails Easy Trails
  • 104 Intermediate Trails Intermediate Trails
  • 47 Difficult Trails Difficult Trails
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Areas Within San Isabel National Forest

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Trails in San Isabel National Forest - 156

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6.4 mi 10.3 km #1Browns Creek Trail #1429
Intermediate
Alpine, CO
Intermediate
Alpine, CO 37 
4.9 mi 7.8 km #2South Mount Elbert Trail #1481
Intermediate/Difficult
Leadville North, CO
Intermediate/Difficult
Leadville North, CO 17 
2.3 mi 3.6 km #3Timberline Lake
Intermediate
Leadville North, CO
Intermediate
Leadville North, CO 18 
3.8 mi 6.1 km #4Ptarmigan Lake Trail #1444
Intermediate
St. Elmo, CO
Intermediate
St. Elmo, CO 13 
13.3 mi 21.3 km #5CT - Segment 9: Tennessee Pass to Timberline Lake
Intermediate
Leadville North, CO
Intermediate
Leadville North, CO
1.0 mi 1.7 km #6Windsor Lake Trail
Difficult
Leadville North, CO
Difficult
Leadville North, CO 11 
4.2 mi 6.8 km #7Mt. Shavano
Difficult
Salida, CO
Difficult
Salida, CO 14 
6.4 mi 10.3 km #8Turquoise Lake Trail
Easy/Intermediate
Leadville North, CO
Easy/Intermediate
Leadville North, CO 12 
13.2 mi 21.3 km #9CDT: Halfmoon Creek to Timberline Lake (CO Sec. 24)
Intermediate
Leadville North, CO
Intermediate
Leadville North, CO
13.3 mi 21.4 km #10CDT: Timberline Lake to Tennessee Pass (CO Sec. 25)
Intermediate
Leadville North, CO
Intermediate
Leadville North, CO

Photos of San Isabel National Forest - 245

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Mount Massive, 2ND highest Colorado 14er, still snow capped, second week of July 2019. View looking west from Halfmoon Road after climbing Mount Elbert earlier this day. Mount Massive at #2 ranked is only 6 feet lower than Mount Elbert.
Aug 10, 2019 near Leadvil…, CO
Ice Mtn & The Three Apostles from Huron Pk with permission from BoulderTraveler
Jan 8, 2015 near Buena V…, CO
View of Huron Peak and the Three Apostles from the trail
Aug 1, 2018 near Leadvil…, CO
Virginia Peak, Winfield Peak, and Granite Mountain in the distance, looking back at the Huron Peak trail, wildflowers in full bloom.
Jul 3, 2018 near St. Elmo, CO
Huron Peak trail
Jan 27, 2018 near St. Elmo, CO
Worth the hike to get to this lake -- same trailhead as Mt. Massive, but lots of trees down made the hike a bit more challenging.
Jul 15, 2019 near Leadvil…, CO
A great view of the three apostles basin.
Jul 2, 2018 near St. Elmo, CO
Huron summit looking at the Three Apostles
Jan 27, 2018 near St. Elmo, CO