Its walls are near vertical cliffs up to NUMBER@1 high and the LOCATION@1 -LRB- a tributary of the Indus -RRB- is only NUMBER@2 wide in places .

Its walls are near vertical cliffs up to NUMBER@1 high . The LOCATION@1 -LRB- a tributary of the LOCATION@2 -RRB- is only NUMBER@2 wide in places .
