The City of Columbus has released its next major proposal in the modernization of its 70-year-old zoning code. The city-wide rezoning effort has the potential to threaten the wooded nature and quiet character of Walhalla Ravine, eliminating Walhalla’s current development restrictions. And the City has not said how it will protect green space in Walhalla or elsewhere. The threat starts with Phase 2, which would allow tall apartment buildings down to the first block of the Ravine.