Dog Policies in US National Parks: Where Are They Allowed?

Dogs are permitted only in designated areas of national parks: typically campgrounds, picnic areas, paved roads, and a few specified trails. They are prohibited in backcountry areas, most hiking trails, wilderness zones, and fragile habitats (e.g., thermal areas, nesting sites). Rules vary by park, so always check the specific park's website before visiting. Leashes (max 6 ft) are universally required. Service animals are allowed everywhere with proper documentation.