Deep Run Ponds Natural Area Preserve is a 706-acre (2.86 km2) Natural Area Preserve in Rockingham County, Virginia. The preserve contains one of the largest remaining systems of Shenandoah Valley sinkhole ponds in Virginia. Such ponds are found in Rockingham and Augusta counties; their water levels fluctuate throughout the year. The preserve's eight sinkhole ponds support a variety of rare plant and animal life; two ponds support the rare Virginia sneezeweed (Helenium virginicum), while others contain black-fruited spikerush , northern St. John's-wort (Hypericum boreale), Buxbaum's sedge , and northern bog clubmoss (Lycopodiella inundata).