 In sum, the inactive and active gravel mines total nearly , making the Arbor Lakes area the largest undeveloped urban infill site in the Twin Cities metropolitan area.Land located in the northern part of Arbor Lakes, which was once land for a master-planned community named HighGrove, built by now defunct Rottlund Homes.The remaining land will be developed by Mattamy Homes, a Canadian building company who renamed the neighborhood, HighGrove at Arbor Lakes.