river source
start of a river or stream
Iller river source
Origin of the Iller north of Oberstdorf in Bavaria, Germany
Thames Head
Group of seasonal springs in Gloucestershire, England
headwaters of the Nile
headwaters in Africa
sources of the Loire River
source of the river Loire, in France
Paint Branch
one of two headwaters of the Northeast Branch Anacostia River in Montgomery and Prince George’s counties, Maryland, U.S.
source of the Seine River
source of the river Seine, in France
Volga source
the source of the European river