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Grays Peak

Southwest Ridge
Difficulty Class 2 
Risk FactorsExposure: Moderate
Rockfall Potential: Moderate  
Route-Finding: Moderate  
Commitment: Moderate  
 
Start10,500 feet
Summit14,275 feet
Total Gain3,800 feet
RT Length10.25 miles
AuthorBillMiddlebrook
Last UpdatedOct 2022
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Trailhead

Take U.S. 6 to the west end of Keystone. If you are driving east on U.S. 6, take the exit for Montezuma Road before U.S. 6 begins its climb to Loveland Pass. If you are driving west (from Loveland Pass), turn left into the River Run area of the Keystone Ski Resort. Take another quick left and drive a bit to get to the Montezuma Road.

Drive ~4.3 miles on the Montezuma road and turn left on the 260 (dirt) road. There is a large parking area at the start of this road. You do not need 4WD to get to the trailhead but do not drive a low-clearance vehicle up this road. From the parking area, drive along Peru Creek approx. 2.25 miles to the trailhead (left). There is a small parking area on the right.

If you have a short, high-clearance 4WD vehicle, you can continue another 2 miles up the rough Chihauhau Gulch road.

Route

1 shows the trailhead. Hike or drive up the Chihauhau Gulch 4WD road ( 2) for approximately 2 miles to a road junction at 11,160' - 3. In spring and early summer, water may be running over this area. The main road (#263) for the Chihauhau Trail goes left, but turn right and follow an old road that leads to Peru Creek. Shortly after leaving the junction, the road to Peru Creek is blocked to motor vehicles - 4. Follow the road north up a hill where it soon turns right and climbs southeast towards Ruby Gulch - 5. From the turn, hike about 1 mile to reach the gentle, open terrain of Ruby Gulch - 6. Continue east into Ruby Gulch to reach a mine at the end of the road - 7. The southwest ridge is up to your left (north) but it's best to continue a bit further into the gulch before heading for the ridge.

Hike a few hundred yards past the mine, turn left across the basin, and begin hiking north up the easy slopes - 8. Hike a few hundred feet of elevation up the slope and then angle left (northwest) toward the southwest ridge - 9. Next, you need to gain the ridge. Without a trail, choose your line and continue onto the slope below the ridge and begin climbing - 10, 11 and 12. Once on the ridge crest, turn right (northeast) to see the remaining route - 13. There are faint trail segments along the ridge and route-finding is easy - just stay near the ridge crest. Continue toward a prominent 13,600-foot point on the ridge - 14. When you reach the top of the point, the final pitch comes into view - 15, 16. Drop slightly, cross a small saddle, and continue toward the summit - 17. After steep terrain between 14,000' and 14,200' ( 18), it's a short walk up to the top - 19.

Notes

Recently, some "No Trespassing" signs have been placed on the old road leading into Ruby Gulch and near the mine structures above treeline. The latest USGS maps show the road to be on public land all the way past the mine structures at 12,000'. To be safe, please keep clear of the old mine structures near the end of the road.
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