Nature Trust of New Brunswick

James C. Yerxa Nature Preserve

Keswick, York County


This 3 hectare Nature Preserve is located along the Keswick River and Highway 105. It is known for its large hardwood trees and the presence of numerous rare and uncommon plants.


Mr. Leonard Yerxa donated his 3 hectare (7.4 acre) preserve to the Nature Trust in late 2002 in memory of his father, James C. Yerxa, for whom the preserve is named after.


The site is representative of the richly fertile alluvial silver maple floodplain forest of the lower St. John River and its tributaries. This ecosystem is one that is poorly represented in permanently protected natural areas in New Brunswick. This type of Appalachian hardwood forest site has declined in the province since the late 1800s due to extensive development for agriculture, and more recently for housing. The 3 hectare preserve contains an old oxbow of the Keswick River and is host to organisms that are uncommon in New Brunswick such as  the Rugel’s plantain (Plantagorugelii). Other plants found here are the red maple, American elm, highbush cranberry, chokecherry, elderberry, hawthorn, and red osier dogwood. In addition to plants, the area attracts many water birds when the rivers flood in spring. Rare birds such as the cinnamon teal (Anascyanoptera) and glossy ibis (Plegadisfalcinellus) have been seen here.

Access and Activities

Located approximately 15 km west of Fredericton, NB., visitors can access Yerxa Preserve by a dirt lane off Highway 105, immediately west of the Keswick Ridge bridge. Park in the turn-around area near the river.

There are no hiking trails, however this preserve is a great get-away for local artists who are inspired by its natural beauty.

 View or navigate to this preserve via Google Maps.

Click the map below for more detail.

 *The property is undeveloped and there are a variety of hazards and risks associated with accessing this preserve. While this nature preserve is open for public access, visitors must assume responsibility for their own actions and safety and are to use the land at their own risk.*


The Nature Trust of New Brunswick
404 Queen St. 3rd floor
P.O. Box 603, Station A
Fredericton, New Brunswick E3B 5A6
Phone: (506)457-2398
Fax: (506)450-2137

Donate online through Canada Helps!

Support land conservation in New Brunswick safely and securely online, using the Canada Helps website.

Donate Now Through!

Social Media
Part of the NB Biodiversity Collaborative