First up you'll explore the dirt roads that run along the border to Gachado Line camp (DP10, an old well) and Dos Lomitas Ranch (DP11), where the old adobe ranch house still stands. It is from this stretch of pavement that you'll explore the various dirt roads and trails that travel the backcountry surrounding the Ajo Mountains. Highway 85 bisects the national monument running north to south. Compared to other national parks and monuments in the Southwest, Organ Pipe sees relatively few visitors (about 260k per year).