Pinnacle Rock: Plainville, CT



Pinnacle Rock in Plainville is situated south of Talcott Mountain and just north of Cooks Gap and is traversed by the Blue Trail (New England Scenic Trail).


In the 1700s a smallpox hospital was situated atop nearby hospital rock. In the 1950s a Nike Missile Base, part of the Cold War defense system, was built along the ridgeline to the north.

Today Pinnacle sits right in the middle of a busy urban neighborhood.  The rock is located on private land, and the Metacomet trail runs South to North across its summit.

Climbing at Pinnacle

Pinnacle is known for single pitch trad and top rope climbing.  There are a handful of bolts and a couple of fixed anchors but these have a habit of disappearing so prepare accordingly. While some climbs can be hard to protect, climbs like First Crack and XYZ Crack are popular first trad leads with many options for gear. As with all CT climbing, the grades at Pinnacle should be taken with a grain of salt.

Access Issues

Parking is a big challenge at Pinnacle and carpooling is strongly encouraged.  Parking at The Big Y parking lot on New Britain Ave is a good option.  The neighbors at the top of Metacomet Road have been very understanding of the hikers and climbers, however, please don’t walk on their lawns, or park in front of their driveways.  Limit noise while moving to and from the cliff. 


Climbers and hikers have been allowed unofficial access to its trail and cliffs for many years.  AVT’s, motorbikes and partiers often to hang out on top of the cliffs and occasionally throw rocks and bottles over the edge. Glass and trash are big challenges at Pinnacle.  Clean-up crews in both the spring and fall haul large quantities of garbage from the site.  Climbers have even used generators and portable vacuums to clean glass from the holds on the more popular climbs, such as Yucca Flats, Deep Knee Bend, Zambesi Hatchet Head. Please bring a bag when you visit and help the clean-up effort.