Mill Valley area campgrounds suited to trailers include Pantoll Campground at Mount Tamalpais, which features forested sites and nearby trail access with level parking for unhitching a trailer. Samuel P. Taylor State Park has creekside, RV-accessible sites and a mix of tent and vehicle spots with restrooms and potable water, making it convenient for longer stays. Kirby Cove Campground offers dramatic coastal views and a small number of level parking sites ideal for small rigs, though there are no hookups. Reservations are recommended for all sites, and each location has different length limits and amenity levels to check before you arrive.