austere badlands, Bands of multi-colored shale, cap rocks, deep meandering arroyo, eroded canyon walls, eroded rocks, eroded spires, eroded spires of rocks called hoodoos, hoodoos, multi-colored limestone, multi-colored sandstone, New Mexico, NM, Occasional badland settings, petrified wood, primitive area west of Rio Rancho NM, retreating escarpments, Rio Puerco rock formations, Rio Puerco Valley, rocky terraces, Sandoval County, spires, steep-sided mesas, Toadstool Hoodoos, unusual hoodoos (weathered rock in the form of pinnacles)