That's a fantastic question, and thank you for caring about keeping our walking trails clean! A dedicated bin for dog waste is a considerate solution. For a public or community trail, I'd highly recommend looking into a specifically designed dog waste station.
These are more than just bins; they usually include a dispenser for biodegradable bags, encouraging proper use. For the bin itself, focus on durability and hygiene. A small, galvanized steel or coated metal bin is ideal. Metal resists weather, odors, and is harder for pests to chew through compared to plastic. Look for a model with a secure, hands-free lid (like a step pedal or a swinging lid) to contain smells and improve sanitation.
Size and installation matter. A 5-10 gallon capacity is usually perfect for a trail—large enough to not overflow daily but small enough to encourage regular emptying. Ensure it can be anchored securely to a post or the ground to prevent tipping. For a truly eco-conscious choice, pair it with compostable bags and consider if your local services can handle compostable pet waste.
My top recommendation is to search for "outdoor dog waste station kits" or "post-mounted pet waste receptacles." They are designed for this exact purpose, are vandal-resistant, and maintain a neat appearance. Your trail users and local wildlife will thank you!