When the Charles P. Crane Generating Station was demolished two years ago, the implosion could be heard for miles. People gathered to watch its towers, long part of the Bowleys Quarters skyline in Middle River, come crashing down. Baltimore County announced Monday it plans to on acquire most of the 153-acre site and turn it into a county park. Forsite Development, which currently owns the property, will keep some of it for what’s being called “low impact uses.” The details of what Forsite might do with the land were not clear, though the county said it could “support the resiliency of the regional power grid.”