Potomac Pack lists 14 dog-friendly trails in Montgomery County, MD. Each listing includes the dog rule we last checked. A few are listed because pets are not allowed, or only service animals are allowed, in all or part of the place.
Dog rule: NPS C&O Canal NHP pets page: pets are allowed in the park on a leash (6 ft max) and waste must be removed. Pets are not allowed on Billy Goat Trail Section A, the boardwalk to Great Falls, or inside park buildings. Leashed dogs are fine on the towpath.
Venue confirmed Checked Nov 10, 2026. Source
Why this is listed: no dogs. NPS C&O Canal NHP pets page: pets are not allowed on Billy Goat Trail Section A. Leashed pets (6 ft max) are fine on the towpath and elsewhere in the park.
Dogs not allowed
Official rule confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
Dog rule: Montgomery Parks regulation (Park Rules Ch. IV s.18): animals must be held at all times on a physical leash attached to a collar or harness, except in designated areas (dog parks), owners must remove waste, animals prohibited where posted, the regulation sets no leash length. Trail is part of Montgomery Parks' stream valley/trail network, no trail-specific pet rule found on the page.
Venue confirmed Checked Nov 10, 2026. Source
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