Watercourse

The Kabul river near Peshawar

Karkheh (Choaspes) before entering Khuzestan

Karkheh (Choaspes) before entering Khuzestan

Karkheh (Choaspes) near Pol-e Dokhtar

Karkheh, Darreh-e Khazine

Karkheh, Upper reaches

Karnak, Palm trees and the river Nile

The Karun at Ahvaz

Karun, upper reaches (along the road from Yasuj to Isfahan)

Khartoum, Confluence of the White and Blue Nile

Khorsabad, Relief of rafts on a great river

Valley of the Kunar, from an airplane