Pomme de Terre River is a tributary of the Minnesota River, 106 miles
(170 km) long, in western Minnesota in the United States.
The Pomme de Terre River in Appleton
Via the Minnesota River, it is part of the
of the Mississippi River
, draining an area of
875 square miles (2,266 km²) in an agricultural region.
The headwaters region of the Pomme de Terre River is the
northernmost extremity of the Minnesota River's watershed.
de terre is French for potato; the river was named by early French explorers
for a different root vegetable, the
potato-like prairie turnip, which
was commonly eaten by the Sioux.
de Terre River issues from Stalker Lake in Tordenskjold
Township, approximately three miles (5 km) northeast of
Dalton in southern
County, and flows generally southwardly through eastern
Grant and Stevens Counties and western Swift
County, through the cities of Barrett, Morris, and Appleton.
It flows into Marsh Lake on the Minnesota
River in southwestern Swift County, approximately four miles
(6 km) southwest of Appleton. Marsh Lake was formed by a
backup of water caused by the Pomme de Terre's delta
, and is presently maintained by a manmade
In its upper course the river flows through a morainic
region of numerous lakes, in a course
characterized by meadows and wooded hills, as well as marshy
stretches near areas where the river passes
through lakes. The largest lakes on the river include Ten Mile Lake
in Otter Tail County; Pomme de Terre and Barrett Lakes in Grant
County; and Perkins Lake in Stevens County. The water levels of
several lakes on the river's course are maintained by small dams.
Downstream of Morris, the river flows on till
between eroding banks and becomes increasingly turbid
. According to the Minnesota Pollution
Control Agency, approximately 81% of the land in the Pomme de Terre
River's watershed is used for agriculture; of this area, half is
used for the cultivation of corn
, and 43% for that of hay
and small grains.
At the United States
's stream gauge
Appleton, eight miles (13 km) upstream from the river's mouth,
the annual mean flow of the river between 1931 and 2005 was
132 cubic feet per second
). The highest
recorded flow during the period, resulting in part from a dam
failure, was 8,890 ft³/s (252 m³/s) on
of zero were recorded on numerous days during several years.