Route Name: Sixth Extinction

Application Status:

Application Cycle: 2026

Rock Formation: Dinosaur Rock

Number of lead bolts to be placed: 6

Number of anchor bolts to be placed: 4

Route Difficulty:

Route Diagrams:

Proposed Route:

The proposed route ascends the south face of Dinosaur Rock, starting about 50 ft right of Pink Man’s Burden. Climbers scramble up a 5.0 slab to a small ledge to start the route. Clip the first two bolts from the ledge, and pull on to the boulder problem crux. About 40 ft of hard climbing through overhanging pinches and big moves leads to a 2-bolt anchor.

Name Meaning:

The Sixth Extinction, refers to the Holocene Extinction event, the 6 th of the great extinction events in Earth’s history.

Existing Route Information

There are only 2 routes on the south face of Dinosaur rock.  Pink Man’s Burden - 5.11d, 2-pitch bolted route  South Ramps – 5.4 trad The proposed route starts about 50 ft right of Pink Man’s Burden, and about 100 ft left of south ramps.

Existing Route Diagrams

Approach Description:

Approach from NCAR. Follow the Mallory Cave trail until it reaches Dinosaur Rock. Then branch left (south) on a well established climber’s trail to the south side of Dino Rock. Reach the base of the route by ascending about 50 ft of 5.0 slab.

Approach Photographs

Descent Description:

Climbers descend by lowering off the route with a 40 m rope

Base Area Description:

The base of the climb is solid rock (rock ledge)

Base Area Photographs

Reconnaissance Work:

Some work has been done.

Has the route been top roped? Is there loose rock? Is it extremely overhanging?

Yes – some sections of the route have been top roped, but due to it being extremely overhanging, the entire route has not been freed. There is minimal loose rock

Any additional notes:

Not provided

Descent Photographs

Not provided