Cat Hollow

Killingly Town Park

25 acres in Killingly, CT

Parking: Room for 4-5 cars at 25 Cat Hollow Rd, Dayville, CT

Trail Map



Cat Hollow was historically 16 acres and its trail consisted of the closed .5 mile Cat Hollow Rd.  With the addition of at least 5 acres from the Briarwood Falls senior living community, there is now a complete loop around the pond for just over a mile of trail.


Heading left from the parking area is the picnic grove and a bridge installed in October 2017 over Whetstone Brook.  From the bridge is the first view of the falls over the Killingly Worsted Mill damn.  Crossing the bridge heads slightly uphill until reaching the spillover that flows well even during dry conditions.  The trail jumps from rock to rock within sight of the mill pond and reminds me of Diana’s Pool in Chaplin.

It continues for about a half mile until reaching what remains of the Sayles and Sabin Mill.  This dam is smaller, but has more to explore in dry conditions.  The dam is overgrown on both sides so crossing back to Cat Hollow Rd may require some bushwacking in the summer.

Though only a short hike the history and dams make Cat Hollow an interesting place to visit.


Established as a town park in 2003.  From the Killingly Conservation site,

“The availability of this wonderful source of waterpower from the rapidly descending brook meant that numerous small cotton and woolen mills were erected along its banks at the beginning of the industrial age in the early 1800’s. The Whetstone Brook drops about 70′ in the first 200 yards. These mills helped to make Killingly the greatest cotton manufacturing town in Connecticut in 1836”

There are short write-ups on the different mills in the area, those can be read here.


John Penney – New Cat Hollow Bridge is Helpful to Hikers

The information shown here is for general reference purposes only. gives no warranty, expressed or implied, as to the accuracy or reliability of this data. Parking in all areas, whether designated here or not, is at your own risk. is not responsible for any damage or loss to vehicles or contents.

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