Argentine Central Railroad Grade (ACRG)
ElevationAscent: 3,982' 1,214 m
Descent: -84' -26 m
High: 13,069' 3,984 m
Low: 9,171' 2,795 m
GradeAvg Grade: 6% (3°)
Max Grade: 20% (11°)
Popular runs nearby
CDT: Herman's Gulch to Berthoud Pass
21.6 mi 34.7 km • Point to Point • 5,034 ft Ascent 1534.36 m Ascent
CDT - Berthoud Pass to Stanley Mountain
7.7 mi 12.4 km • Out and Back • 1,309 ft Ascent 398.96 m Ascent
5.6 mi 9.0 km • Out and Back • 2,381 ft Ascent 725.84 m Ascent
James Peak (13,294') from Corona Pass Road
8.6 mi 13.8 km • Out and Back • 2,102 ft Ascent 640.65 m Ascent
9.8 mi 15.8 km • Out and Back • 2,712 ft Ascent 826.74 m Ascent
Ptarmigan Trail (#35)
13.2 mi 21.3 km • Out and Back • 3,536 ft Ascent 1077.84 m Ascent
“Head up McClellan Mountain on this sustained doubletrack climb.”— Shaun Johnson
You'll pass by a few old mining sites along the way and most likely will hear the train whistle of the Georgetown loop railroad. Climb for 3.0 miles until you reach Pavilion Point. At Pavilion Point, you'll see the remnants of an old chimney. There are also some fantastic views of Silver Plume and the Georgetown loop railroad.
From Pavilion Point, the road now becomes a doubletrack jeep trail. Continue down the road 0.8 miles until you run into the Leavenworth Creek Road. The ACRG will continue for many more miles up the steady road to reach McClellan Mountain. Runers looking for a shorter and easier loop could turn left and run down to the pavement to complete a counter-clockwise loop through Georgetown and back to the parking area.
Otherwise, keep following the Argentine Central Railroad Grade all the way up the 4x4 road.
Land Manager: USFS - Arapaho & Roosevelt National Forests Office