Little Monadnock Mountain, 1,900 feet (579 m), is located in the towns of Fitzwilliam and Troy, New Hampshire.

Most of the mountain is located within Rhododendron State Park; there are scenic vistas from ledges just below the summit.

The summit ledges of Little Monadnock Mountain are accessible via the Metacomet-Monadnock Trail or by the shorter route from the Rhododendron State Park headquarters/trailhead in Fitzwilliam (1.2 mi/1.9 km to the summit).

The mountain is open to hiking, picnicking, and snowshoeing in the winter.

A loop trail through the grove is accessible from the park trailhead.