Unity — County officials and conservationists will gather in Unity this morning to celebrate the grand opening of a new 4-mile hiking trail on county land.

The Unity Mountain Trail runs from a trailhead near the Sullivan County complex, includes a lookout near the summit of Unity Mountain, runs past Marshall Pond, and ends at another trailhead off Mica Mine Road near a historic family cemetery.

“It runs along the slopes of Unity Mountain and has got a beautiful lookout, a knob about 100 feet lower than the top. From there you can see the Green Mountains,” said Lionel Chute, the Sullivan County natural resources director.

A walk begins at 9 a.m. today at the trailhead near the Sullivan County health care employee parking lot, followed by a kiosk unveiling at 10 a.m. where the trail crosses the Second New Hampshire Turnpike.

A Unity school bus will shuttle hikers back from the end of the trail at Mica Mine Road. Participants are advised to bring water and snacks and wear sturdy shoes for the full hike. Leashed dogs are allowed on the hike.