Black dragon Pool:

Longtan Grand Canyon Black dragon Pool dating back 1200000000 years before and after the formation of Middle Proterozoic quartz sandstone in the background of the new tectonic movement,developed between the two groups

Orthogonal and communicated with the vertical joints is good, running along the joint intensive parts of strong cutting, forming the cliffs erect, long 20m, width of only 1 to 3m

Deep ravine (50m Yi Xiantian). The bottom of a lake, a depth of about 4-5m, just like a dragon in theknown as "Black dragon Pool".