It's mounted about 18 feet off the ground in a mature white pine tree. The broken branches around the box can be used as perches. It's recommended that an owl nest box be mounted beneath a branch.
My cousin across the road gave me two wooden duck/owl nest boxes along with this fiberglass model, which Jim mounted on a pole right at the edge of the pond. It remains to be seen what bird species will be interested in nesting in such a habitat. I've read the wood ducks raise their young in wooded areas then lead them to water after they hatch. Mallards nest on the ground in grass, so I doubt they'll want to use it. Perhaps owls will? As soon as I find out I'll be sure to write about it.