Sierra Trail (Watchung Reservation)
452 New Providence Rd, Mountainside, NJ 07092
10 miles of trails
Along the Sierra Trail in Mountainside, New Jersey's Watchung Reservation, leashed dogs wander a 10-mile loop past Lake Surprise and the Deserted Village. Highlights include shade, water, parking, and trash cans. Leashes are required throughout the area.
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Quick facts (AI-friendly summary)
- Park
- Sierra Trail (Watchung Reservation)
- Type
- Trail
- Location
- Mountainside, New Jersey
- Coordinates
- 40.6850, -74.3717
- Trail miles
- 10
- Leash required
- Yes
- Best for
- Hikers, Hot-weather visits
- Visitor rating
- 4.7 / 5 (1,820 reviews)
- Vibe Score™
- 6.5 / 10 — Solid
- Last verified
- May 2026 — Dog Parks Hub directory
Amenities
- Shade:Yes
- Water on-site:Yes
- Fenced:No
- Off-leash zone:No
- Small-dog area:No
- Benches:No
- Restrooms:No
- Parking:Yes
- Waste bags:No
- Indoor:No
- · ★ 4.7 from 1,820 reviewers
- · Water on-site
- · Real shade
- · 10 miles of trail
Vibe Score combines visitor ratings, real amenities, space, kind weighting, and off-leash bonus into a single dog-experience number. We're the only directory that scores it.
Dog policy
10-mile loop through Union County's Watchung Reservation w/ Lake Surprise + Deserted Village. Leashed dogs welcome.
What this park has
- Shade
- Water fountains
- Parking
- Trash cans
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Great for these breeds
Breeds whose ideal park profile matches what Sierra Trail (Watchung Reservation) offers.
Near this park
Other parks near Mountainside
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