Overview

The Blue Mountain Loop in Harriman State Park offers an accessible multi-day backpacking experience just 30 miles north of New York City. This 16.5-mile circuit traverses rocky ridgelines, passes numerous lakes and ponds, and connects historic 1920s-era stone shelters built by the Civilian Conservation Corps. The park's 200 miles of interconnected trails allow for flexible route planning, making this an excellent training ground for longer backpacking trips or a quick wilderness escape from the metropolitan area.

Expect a challenging workout over rocky, root-strewn terrain with累积 elevation gain typically exceeding 3,000 feet on most loop routes. The trail system is well-marked with colored blazes, though Harriman is notorious for lacking directional signs at intersections—careful map reading is essential. The New York-New Jersey Trail Conference publishes the definitive Harriman-Bear Mountain Trails Map, which is strongly recommended over other mapping resources.

Permits & Regulations

Backcountry camping is free and operates on a first-come, first-served basis at Harriman's nine designated shelters. There is conflicting information about permit requirements—some sources indicate permits can be obtained at the park visitor center or Tiorati Circle contact station during operating hours, while others report no permit system is currently enforced. To be safe, plan to stop at the visitor center or contact station if they're open, but most backpackers report simply hiking to shelters and camping without advance registration.

Critical camping rules: - Camping is permitted ONLY at the nine designated shelter sites or within 300 feet of them - No dispersed/at-large camping is allowed anywhere in the park - Shelters sleep 6-10 people; tenting near shelters is permitted and recommended on busy weekends - Campfires only in provided fire rings at shelters - Pack out all trash; Leave No Trace principles apply - No camping in day-use areas, picnic grounds, or along beaches

Bear-resistant food storage is not required but highly recommended—the park has an active black bear population of at least 15 individuals. Hang food properly or use a bear canister.

For current regulations and permit information, contact Harriman State Park at (845) 786-2701.

Best Season

Late spring through fall (April-November) offers the most reliable hiking conditions. May through October represents the prime season with fully accessible trails and pleasant temperatures.

Summer (June-August): Warm and humid with temperatures in the 70s-80s°F. Expect crowds at trailheads and shelters on weekends. Water sources are most reliable early summer but can diminish by August. Ticks are very active—this is "ground zero for Lyme disease," so use repellent and check thoroughly after hiking.

Fall (September-November): Arguably the best season. Crisp temperatures, spectacular fall foliage in October, fewer bugs, and reduced crowds after Labor Day. Water becomes increasingly scarce by late October.

Winter (December-March): Experienced winter backpackers can find solitude in the historic stone shelters, but be prepared for temperatures dropping into the teens. Several park roads close December 1 through April 1 (Tiorati Brook Road, Lake Welch Drive, Arden Valley Road), limiting trailhead access. Ice and snow make the already rocky trails treacherous.

Spring (April-May): Trails can be muddy and wet, but streams run full and wildflowers emerge. This is the most reliable season for water sources. Prepare for variable weather and lingering snow patches at higher elevations into early April.

Water & Resupply

Water availability is the biggest challenge for backpackers in Harriman. The park is notably dry at higher elevations where most shelters are located, and streams marked on maps often have minimal flow or run dry by late summer.

Shelter-specific water guidance: - West Mountain Shelter: NO reliable water source nearby. Carry what you need or descend significantly to find water. - Fingerboard Shelter: Active spring directly below the shelter. If dry at the obvious spring, continue down the streambed—it usually reemerges further downslope. Lake Skannatati is also nearby as a backup. - William Brien Memorial Shelter: No nearby source. Descend 0.5 miles north on yellow-blazed Menomine Trail to Bockey Swamp Brook, which runs reliably except in severe drought. - Tom Jones Shelter: Limited nearby water; plan accordingly. - Bald Rocks Shelter: Sparse water access; check current conditions.

General water strategy: Fill up at lakes whenever possible (Harriman has 31 lakes/reservoirs). All water should be filtered or treated—expect brown, tannin-stained "leaf soup" typical of Eastern forests. The water is safe after treatment but remains discolored. Plan to carry 2-3 liters between reliable sources, especially during summer and fall.

Resupply: This is a weekend loop with no resupply options mid-route. The town of Sloatsburg is accessible via Seven Lakes Drive if you need emergency supplies. Otherwise, carry all food for your trip.

Hazards & Challenges

Rocky terrain: Harriman's trails are relentlessly rocky with exposed bedrock, loose stones, and root-strewn paths. Ankle-supporting footwear is essential. Expect slower than normal mileage—rocky descents can be particularly taxing.

Black bears: At least 15 black bears inhabit the park and are frequently seen. Store food properly, never approach bears (especially cubs), and report encounters to Park Police at (845) 786-2781. Make noise if a bear approaches and back away slowly—do not run.

Timber rattlesnakes: The eastern portion of the park has populations of timber rattlesnakes, though they're rarely encountered and generally docile. A hiker was airlifted to hospital after a bite in 2021. Watch where you place hands and feet on rocky scrambles, especially in warm weather.

Ticks: Deer ticks carrying Lyme disease are extremely prevalent. Wear light-colored clothing, use permethrin-treated gear, apply DEET repellent, and conduct thorough tick checks daily.

Navigation: Trail intersections lack directional signs, and the dense network of blazed trails can be confusing. Carry the NYNJTC Harriman-Bear Mountain Trails Map and know how to read it. Cell service is spotty.

Weather: Summer thunderstorms can develop rapidly. Ridgeline exposure increases lightning risk—plan your day to avoid summits during afternoon storm windows.

Getting There

From New York City (45 miles, 1 hour): Take Palisades Interstate Parkway north or Route 17 north. Harriman is extraordinarily accessible from NYC, making it popular for car-free backpackers using public transportation.

Nearest airports: - Newburgh (SWF): 18 miles - White Plains (HPN): 24 miles
- Newark (EWR): 39 miles - LaGuardia (LGA): 35 miles - JFK: 44 miles

Public transportation: - Bus: Coach USA/Short Line operates service from Port Authority Bus Terminal to Tuxedo Park & Ride ($16-28, 59 minutes). Service is limited; check current schedules at Coach USA. - Harriman Shuttle: Weekend-only shuttle bus ($5 one-way, $10 round-trip) runs from Metro-North Tuxedo train station through the park, July 3-October 31, mornings only. The shuttle makes one loop through the park and stops at Sloatsburg. Ideal for creating point-to-point hikes.

Trailhead parking: Multiple designated hikers' parking areas provide access: - Lake Sebago Boat Launch: Access to Seven Hills Trail (Seven Lakes Drive) - Tiorati Circle area: Beech Trail lot, Red Cross Trail pull-off - Reeves Meadow: Popular starting point for many loops

Parking fees: $10/vehicle daily at Lake Tiorati and Lake Welch, Memorial Day through Labor Day only. Other trailhead lots are free year-round.

Road closures: Tiorati Brook Road, Lake Welch Drive, and portions of Route 106 close December 1-April 1, eliminating access to some trailheads in winter.

Tips

Shelter strategy: Popular shelters (especially West Mountain with its Hudson River views) fill up on Friday nights spring through fall. Arrive early or bring a tent. Midweek trips offer near-guaranteed solitude.

Route flexibility: The extensive trail network means you can easily extend or shorten your loop based on conditions, energy, and water availability. Study the NYNJTC map beforehand to identify bailout options.

Pack light: Rocky terrain makes every pound count. This is an excellent place to test ultralight setups before longer trips.

Water cache: Some experienced Harriman backpackers cache water at trailhead parking lots the day before their trip, then loop back to resupply on day two.

Historic shelters: The stone lean-tos are beautiful and atmospheric but can be cold and drafty. Bring a ground pad with good insulation and consider a tent for warmth and privacy.

Training ground: Many Appalachian Trail thru-hikers use Harriman for shakedown hikes. The rocky terrain, primitive shelters, and elevation gain provide excellent preparation for longer trails.

Blazes matter: Learn the color-coding system. Trails are blazed in various colors (blue, yellow, white for the AT, etc.), and intersections can have 4-5 different blazes. Cross-reference with your map constantly.

Plan Your Trip

Choose Your Direction