This 240-acre conservancy park complex consists of 3 separate parcels located on
Miller and Mandus Olson Roads.
The park contains wetlands, second-growth forests, wildlife habitat and an extensive
trail system.
The Grand Forest is one of the Islands most frequently used trail systems and includes
a three-mile trail system accessible from Mandus Olson Road (the Grand Forest East),
and a three-mile trail system that parallels Miller Road (the Grand Forest West).
To access the Mandus Olson portion of the Grand Forest, take New Brooklyn Road to
Mandus Olson Road and head north. As the road makes a 90 degree turn you will see
the sign for the park on the right. The trail head parking area on the other end
of the Grand Forest is accessible from Miller Road just North of Tolo Rd.
