Fritz and Caroline Oldenburg and Dennis and Jane Shubert (Walden-Parke LLC) gifted 205 acres of Walden-Parke Preserve to Bangor Land Trust in December 2005 and an additional 205 acres in December 2011. This preserve contains large beaver wetlands and several additional habitat types including hardwood and softwood forests in varying stages of maturity, vernal pools, and a portion of Caribou Bog. Woodland flowers bloom here in the spring, and blackberries can be found in the fall. It is across the old Veazie railroad bed from the City Forest. The well-marked Blue Trail forms an easy-to-walk loop about 2 1/2 miles long, leaving from the cul-de-sac at the end of Tamarack Trail, off Walden Parke Way. The Blue Trail map is on the Bangor Land Trust and Maine Trail Finder websites. Pets on leash are permitted on the Blue Trail.