New Hampshire · New Hampshire State Parks

Dogs at Mount Washington State Park

Can I bring my dog, and on which trails?
Dog-friendly

Yes, leashed dogs can summit via the Auto Road or hiking trails, but not the Cog Railway or Sherman Adams building.

Leashed dogs are allowed on hiking trails and the Auto Road (when outside the vehicle, leashed).

Where dogs are allowed

Leashed dogs are allowed on hiking trails and the Auto Road (when outside the vehicle, leashed).

Where dogs are not allowed

Sherman Adams Summit Building (visitor center, dining/concession areas) and the Cog Railway.

Good to know

Rocky summit terrain can be tough on paws; leash required throughout.

Leash rule

6 feet maximum. Retractable leashes are often not allowed.

Service animals

Service animals are allowed where pets are not, under the ADA. A leash is still required.

Official source
New Hampshire State Parks
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Last verified 2026-07-09
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Common questions

Can I bring my dog to Mount Washington State Park?

Yes, leashed dogs can summit via the Auto Road or hiking trails, but not the Cog Railway or Sherman Adams building. Leashed dogs are allowed on hiking trails and the Auto Road (when outside the vehicle, leashed).

What is the leash rule at Mount Washington State Park?

6 feet maximum. Retractable leashes are often not allowed.

Where are dogs not allowed at Mount Washington State Park?

Sherman Adams Summit Building (visitor center, dining/concession areas) and the Cog Railway.

Are service animals allowed at Mount Washington State Park?

Service animals are allowed where pets are not, under the ADA. A leash is still required.