Merrimack County, New Hampshire
1,016 hiking trails · 6parks & campgrounds · 39 cities. Real OpenStreetMap + Recreation.gov data.
About Hiking in Merrimack County, New Hampshire
Merrimack County is home to 1,016 mapped hiking trails and 6 federal parks, campgrounds, and recreation areas spread across 39 cities. Trail data is sourced from OpenStreetMap contributors; park and campground info comes from Recreation.gov.
Looking for something specific? Search all trails in Merrimack County or browse parks. Want to narrow further? Pick a city below to see only that city’s outdoor options.
Trails & Parks in Merrimack County
Up to 206 pinpoints showing trail and park locations across the county.
Cities in Merrimack County
Click any city to see trails and parks within it.
15 more cities in this county.
Sample Parks in Merrimack County
Sample Trails in Merrimack County
Hiking guides for New Hampshire
Statewide rankings and guides — useful context for Merrimack County.
Photo: Sergei AkulichThe 10 Longest Hiking Trails in New Hampshire, Ranked
New Hampshire's longest mapped hiking trails, ranked by distance with notes on what makes each route worth the commitment.
Photo: David MarcuNew Hampshire's 10 Most Punishing Trails by Elevation Gain
Steep is hard. These are the ten New Hampshire trails with the most total elevation gain — quad-burners earned by hard climbing.
Photo: Maddi BazzoccoThe Best Beginner-Friendly Hikes in New Hampshire
Ten gentle, well-marked New Hampshire trails perfect for first-time hikers, families, or recovery days.
Photo: Tobias MrzykThe 10 Most Challenging Hikes in New Hampshire
New Hampshire's ten hardest hikes — expert difficulty, big mileage, or serious exposure. Reserved for experienced hikers.
Photo: Diego LozanoThe Best National Parks & Recreation Areas in New Hampshire
Federal parks and recreation areas in New Hampshire ranked by what they actually offer hikers and campers, not just popularity.
Photo: Joshua EarleBest Waterfall Hikes in New Hampshire: 10 Trails to See Falls Up Close
New Hampshire's best hikes to named waterfalls — from short family-friendly viewpoints to all-day cascade chasing.