Miller State Park - United States

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About Miller State Park

RV quick facts for Miller State Park

DetailInformation
Full hookupsNone, day-use park only
Dump stationNot available on site
Road restrictionsSummit auto road is narrow and steep; large RVs and trailers should park at the base lot
Cell serviceGenerally available at the summit; spotty along wooded trails
Reservation windowNo reservations; day-use entry only
Nearest RV campingPrivate campgrounds and nearby NH state parks with camping, such as Greenfield State Park

Best time to visit Miller State Park

Late spring through mid-October is the best window, with May and June offering mild temperatures and blooming forests, and September to early October delivering peak fall foliage and strong hawk migration at the summit. Summer months are warmest and busiest, especially on weekends. Shoulder-season RV travelers should note that the auto road typically opens seasonally and may be closed in winter and during poor weather.

Jan 85 mm
30°F - 10°F

Summit auto road closed; winter conditions.

Feb 75 mm
34°F - 12°F

Summit auto road closed; winter conditions.

Mar 90 mm
43°F - 21°F

Auto road typically closed; trails icy.

Apr 95 mm
55°F - 34°F

Auto road seasonal opening; muddy trails possible.

May 95 mm
68°F - 45°F

Wildflowers and green-up; pleasant hiking.

Jun 100 mm
77°F - 54°F

Warm with occasional thunderstorms.

Jul 100 mm
82°F - 59°F

Peak summer; busiest weekends.

Aug 100 mm
80°F - 57°F

Warm, humid; good hiking weather.

Sep 95 mm
72°F - 48°F

Peak hawk migration begins at summit.

Oct 100 mm
59°F - 37°F

Peak fall foliage; expect crowds.

Nov 100 mm
46°F - 28°F

Auto road closes for the season; day-use hiking only.

Dec 100 mm
36°F - 17°F

Summit auto road closed; winter conditions.

Things to do at Miller State Park

  • Drive the Summit Auto Road Easy

    A paved 1.3-mile road climbs from the base parking area to the summit of Pack Monadnock. It offers easy access to views for those who prefer not to hike, though the road is narrow and steep with tight curves. Small vehicles are recommended; large RVs should park below.

  • Wapack Trail to the Summit Moderate
    RV parking available

    The Wapack Trail is a blazed hiking route that climbs directly from the base lot to Pack Monadnock's 2,290-foot summit. The trail is rocky and steep in sections, with open ledges offering views on the ascent. Round trip is about 2.4 miles.

  • Marion Davis Trail Moderate
    RV parking available

    The Marion Davis Trail is an alternative route to the summit from the base parking area, often hiked as a loop with the Wapack Trail. It is slightly gentler than the Wapack and passes through hardwood forest. Expect roughly a 2.5-mile round trip.

  • Hawk Watching at the Summit Easy
    RV parking available

    Pack Monadnock's open summit is a known hawk-watching site during fall migration, staffed by volunteers on many autumn days. Thousands of raptors pass overhead between September and early November. Bring binoculars and warm layers.

  • Picnicking at the Summit Easy

    The summit area has picnic tables and open ledges with sweeping views across southern New Hampshire. It is a popular spot for a packed lunch after the drive or hike up. Restrooms are available seasonally.

  • North Pack Monadnock via Wapack Trail Strenuous
    RV parking available

    Experienced hikers can continue north along the Wapack Trail from the summit toward North Pack Monadnock, a longer ridge hike with additional viewpoints. The full out-and-back adds several miles and significant elevation change. Start early and carry water.

  • Fall Foliage Viewing Easy
    RV parking available

    Miller State Park is a popular foliage-viewing destination in late September and early October. The summit provides a 360-degree perspective over the Monadnock region's colorful forests. Arrive early on peak weekends to secure parking.

Top Hosts near NH, United States

Matthew 6 trips - Joined Jan 2024

Matt was easy to deal with. He dropped off on time , as promised, and set the entire camper for us, inside & out

Daniel N. - Jul 2025

Matthew went above and beyond for this booking! Would recommend this trailer

RVezy R. - Aug 2024

Tyler1 trip - Joined May 2023

Tyler got right back to me when booking the rv, he went above and beyond to deliver it and set up, we had a wonderful family vacation in a beautiful rv, highly recommend

Annabel V. - Aug 2025

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RV Rentals Miller State Park

Miller State Park, NH, United States

How to get to Miller State Park

The park entrance is on NH Route 101 in Peterborough, about 20 minutes (13 miles) east of Keene and roughly 1 hour 15 minutes (about 70 miles) northwest of Boston via Route 3 and Route 101. Manchester-Boston Regional Airport is the closest major airport for fly-and-rent trips, about 40 miles east. RV drivers should use caution on the narrow, steep summit auto road, which has tight curves and is not recommended for large motorhomes or trailers; park base-area lots are better suited for longer rigs.

RVezy vs. Traditional RV rental

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