9 MILE CANYON PHOTO GALLERY. 9 Mile Canyon, near Price and Wellington on BLM land, is widely considered one of the finest rock art areas of North America. Approximately 10,000 images in the 41 (actually) mile canyon. For more information on the Rock Art in this area, click HERE. Click on the first thumbnail to see larger image. Use controls at bottom of each large image to start slide show or go through manually with arrow keys.