Rush Oak Openings Unique Natural Area
From DEC website:The 230-acre Rush Oak Openings Unique Area features the globally rare plant community commonly referred to as an "oak opening" or "oak savannah", please keep this in mind if you visit the area. This site is the only known intact oak opening remaining in New York State. Oak openings were very common in the Midwest (where the prairie met eastern forests) prior to European settlement. In addition to the oak openings habitat, there are oak woodlands, limestone woodlands, wetlands, successional old field communities and the transitions between each of these types.