The Morono Park trail can be accessed from Second Street. Take US-3 to Sewalls Falls Road and turn right onto Second Street (between Beaver Meadow School and Beaver Meadow Golf Course). Park in the parking lot on the left, just before the railroad tracks. The Morono Park trailhead is just across the street. There is additional parking in the New Hampshire Fish and Game parking area further down the road on the right.

The TrailFinder website has a description and map of a hike at Mono Park.

Just to the west of the railroad tracks, on the right, a wide path goes down a small hill then winds around to the left, parallel to the railroad tracks. It soon bears right along the shore of West Concord River Oxbow Pond. The railroad skirts the Merrimack River edge of Sewalls Island across the pond. Continue along the trail and the water for 0.4 miles, to reach a short loop trail on the left that skirts the edge of the oxbow bank. You may be rewarded with sights of herons, ducks, beavers, and, in the winter, signs of otters.

At the end of the loop, turn left to get back onto the main trail.  Shortly there is a second loop trail on the right which winds through a field below a wooded hill.  This loop is covered with grass which becomes very high in the late spring and summer making it unsuitable for walking.  In the late fall and winter, however, it is a nice alternative to the main trail and is excellent for snowshoeing and skiing.  This also returns to the main trail where you turn right to continue. The main trail follows the bank of the oxbow for a short distance where it ends at the edge of a cultivated field which is State Prison property.