الجرف الكلسي الجيري الوسيطي الجنوبي الآبالاشي الجنوبي - CEGL008435

The massive, red mudstone cliffs on the southeast flank of Red Rock Mountain in Smyth County have abundant seasonal seepage and available calcium that favors a relatively diverse cliff flora.  Red Rock Mountain State Natural Area Preserve. © DCR-DNH, Gary P. Fleming