I'm just going to throw in that at least half of all the walking I've done in the past year has been in an explicit dog park set up and maintained by the city of Anchorage. It is well thought out and in interesting use of land that would not be suitable for residential use. It adjoins land owned by a telephone communications company and used for a transmission/ relay tower. The land around is for the large guys and anchors that keep the thousand foot antennas in place. There are herd paths in all seasons. The dog park is separated out by small streams. There is a walking circle of about 1/3 mile around a rough field, and while there is a chainlink entrance which is double gated to allow control of animals, the area is not totally enclosed. Moose have wandered through. We walked Ravn there unleashed, and more than half the dog owners did the same. I often thought of how I had no reason to walk there without the girl, as we called her, but I'm pretty sure I've seen one guy in there 'lone' walking. There is a totally enclosed and much smaller area with its own double gates and it is explicitly labeld 'small dogs'. The municipality keeps the areas provided with doggie bags and a couple of porta-potties for the rest of us. There are also areas for outdoor paintball play, kiddie calistenics and a ball field. And adequate parking.