Connecticut · Hiking

Undermountain Trail

1.8 mi
one way
794 ft
climb
1,802 ft
high point
Point to point
route
Jul–Oct
best months

Clear today

Weather is good · OpenWeather · checked 8 h ago

Is Undermountain Trail open right now?

Closure in the area

There's a closure order in Appalachian National Scenic Trail. It doesn't name Undermountain Trail, so check the source for the area it covers.

As of · Source: NPS · Appalachian National Scenic Trail. Agencies don't list every closure — check before you go.

Undermountain Trail is a 1.8-mile moderate hike in Connecticut, set within the Appalachian National Scenic Trail and managed by the National Park Service. The route rises from a low point of 755 feet to a high of 1,802 feet, with a total elevation gain of 794 feet. The climb is back-loaded, so the steeper stretch comes later in the hike. Summer and early fall are the most comfortable times to go. Typical averages from a nearby weather station show July highs around 78°F and September highs near 69°F, with snow common from December through February. The trail is a point-to-point route, and the National Park Service reports no fee for it. Bikes and horses are not allowed. The trip takes about an hour. Paradise Group Campsite Trail lies about 0.6 miles away, and the Appalachian Trail passes within about 1.4 miles. Sage's Ravine, a campground in Massachusetts, is about 1.3 miles off, and the Housatonic River is about 5.7 miles away.

Local outfitters

Not on Roamze yet. Their page has how to reach them.

  • Best time to go · Jul–Oct

    Best time to visit Undermountain Trail

    Best months: July–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

    1. Jan

      30° / 14°

      13 wet · 9 snow

    2. Feb

      32° / 15°

      12 wet · 8 snow

    3. Mar

      40° / 23°

      13 wet · 7 snow

    4. Apr

      54° / 34°

      13 wet · 2 snow

    5. May

      65° / 45°

      14 wet

    6. Jun

      73° / 55°

      13 wet

    7. Jul

      78° / 59°

      12 wet

    8. Aug

      76° / 58°

      11 wet

    9. Sep

      69° / 51°

      11 wet

    10. Oct

      57° / 40°

      12 wet

    11. Nov

      45° / 30°

      12 wet · 3 snow

    12. Dec

      35° / 21°

      14 wet · 7 snow

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Norfolk 2 Sw, CT, 12.8 mi away at 1,340 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

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Map and trail data © OpenStreetMap contributors