

Harlequin Lake Trailhead is a short, forested route to a quiet lake. It’s an out-and-back 1 mile with about 100 ft of elevation; plan 30 minutes to 1 hour. Expect shaded paths with boggy spots near the lake; mosquitoes can be bothersome in warm months. In bear country, carry bear spray and stay aware of your surroundings.
Easy Stroll
A shallow lake framed by mountain backdrop; quick route that offers a peaceful escape from busier park areas.
• Arrive by 8 AM to lock a parking spot. • If full, consider returning later or visiting West Yellowstone area for a break. • Bring bear spray, bug spray, and a map; cell service is unreliable. • This short route is perfect for an after-dinner leg-stretch.
Late spring through early fall (June-September).
Family-friendly; easy, short hike suitable for young children with supervision in bear country.
Day hiking does not require a permit.
N/A
Carry bear spray, stay alert; mosquitoes can be intense in late spring through summer; marshy zones can be muddy; cell service is unreliable.
Primarily shaded; packed dirt with some uneven sections; not wheelchair accessible.
Family-friendly; easy, short hike suitable for young children with supervision in bear country.
No facilities at the trailhead; closest amenities in West Yellowstone town.
Address
Madison Area, Yellowstone National Park, WY 82190, USA
Based on 13 Google reviews
Jared Green
Short half mile hike to a lake covered in plants. Mosquitos will kill you before the bears do if you go early in the morning. Short east hike close to the west entrance you can break in new shoes, etc.
Tasnim Ara Islam
Harlequin Lake Trail is an easy 1 mile out and back trail. It will take around 30 minutes to complete. For parking, you have to park on the opposite side of the trailhead.The trail leads to a serene lake view at the end. The area is teeming with diverse wildlife like birds, elk, and beavers (and yes, a few pesky mosquitoes too). Much of the lake is lined by reeds and covered by lily pads that bear yellow flowers in summer. The road through the lodge pine forest to the shallow, secluded lake is incredibly tranquil and peaceful.
Benjamin Clark
Remember what I always say. Never pet the bison as there are bison on this trail. The lake is very peaceful and quiet. The trail is short, about 2000 ft. On this trail, you will see a lot of wildlife including birds, deer, elk, beavers, grouse, swans, ducks, bears, and of course, bison, which you will not pet and you will stay at least ten feet away. Also at the lake there are lily pads, which have yellow flowers in the summer. I recommend you bring bug spray, sunscreen, bear spray, snacks, and water in an insulated metal water bottle. Thank you for reading, and have fun. But seriously, do not pet the bison.
Showing 3 of 13 reviews
Yes. Bears are present in the area. Carry bear spray, make noise, and stay on the trail.
Yes. The 1-mile round trip has a gentle grade; supervise children near marshy zones and water.
Yes, a small roadside pull-out across from the trailhead; it fills quickly, so plan ahead.
Cell service is unreliable; plan directions and emergencies without depending on it.
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