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Argentine North Fork Access Trail

Difficult
 3.5 (11)

A tough climb with amazing views through Arapahoe Basin Ski Area.


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Map Key

2.6

Miles

4.3

KM

Doubletrack

12,465' 3,799 m

High

11,004' 3,354 m

Low

1,464' 446 m

Up

3' 1 m

Down

11%

Avg Grade (6°)

24%

Max Grade (14°)

Dogs Unknown

E-Bikes Unknown

Description

This trail/road starts NE of Arapahoe Basin Ski Area, just NE of the turn off for the last parking lot. There is also a CDOT Building right by the start of the trail. There are no official trail markings or signs.

I hope you already warmed up because this trail starts going steep uphill right away. The grade is not only steep, but the road is full of very loose rock. If this isn't for you, turn back now, it only gets steeper and looser! High mountain air and meandering wooded streams try to help you block out the pain in your legs and thin air in your lungs.

Grind through a few switchbacks until you reach the top of the Black Mountain Express and the Black Mountain Lodge. You are now just over 1 mile and 500 feet from where you started. If you hit this on a Friday or Saturday afternoon, you'll most likely see a wedding at the Black Mountain Lodge. Don't run over the bride!

From Black Mountain Lodge--you guessed it--keep climbing, but enjoy the epic views of the east wall of A-Basin, including Lenawee Peak. It gets steeper and looser from here. The road is completely rideable, but mere mortals will likely require a rest stop or two or Hike-a-Bike. After another 1.5 miles and about 1000 feet of climbing, you reach the top!

Enjoy vast views while you catch your breath. From here, Catch the Lenawee Trail (recommended), or head back down the way you came.

Contacts

Shared By:

Will Stingley

Trail Ratings

  3.5 from 11 votes

#18357

Overall
  3.5 from 11 votes
5 Star
36%
4 Star
18%
3 Star
9%
2 Star
27%
1 Star
9%
Trail Rankings

#1,568

in Colorado

#18,357

Overall
4 Views Last Month
3,234 Since Sep 21, 2015
Difficult

0%
0%
11%
0%
89%
0%

Photos

Top of the trail, just below Black Mountain Lodge. Photo credit: Ian Zinner/Arapahoe Basin
Sep 27, 2022 near Keystone, CO
Wheels Up. Photo credit: Ian Zinner/Arapahoe Basin
Sep 27, 2022 near Keystone, CO
At the top looking toward the east wall.
Sep 21, 2015 near Keystone, CO
Climbing ANFT during Arapahoe Basin's 2022 "Reverse Enduro" MTB Race.
Sep 27, 2022 near Keystone, CO
Climbing Upper Summer Road during Arapahoe Basin's 2022 "Reverse Enduro" MTB race.
Sep 27, 2022 near Keystone, CO
The Beavers Loop starts at the top terminal of The Beavers Lift. Rider is Joey Klein of IMBA Trail Solutions. He designed the trail and led its construction.
Oct 4, 2022 near Keystone, CO

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All Clear 72 days ago See History
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Check-Ins

Aug 2, 2020
AJ Brinckerhoff
Beast of a climb
Jul 19, 2020
Joe Martinet
Jesus that's some up hill and brake burning down hill 5.3mi
Jul 11, 2018
Justin Dean
This was a wicked climb. We pushed our bikes more than we rode. 2.6mi
Jul 13, 2016
Grant Bradow
Hard and loose climb 2.6mi