Scientist conducting measurement through hole drilled in ice
Scientist conducting measurement through hole drilled in iceScientist conducting measurement through hole drilled in ice covered surface of the Minnesota River in western Minnesota.
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Two scientists stand on the frozen Minnesota River covered in snow conducting fieldwork in western Minnesota.
Public Domain.
Scientist conducting measurement through hole drilled in ice covered surface of the Minnesota River in western Minnesota.
Scientist conducting measurement through hole drilled in ice covered surface of the Minnesota River in western Minnesota.
Field office chief Dan Daly smiles for the camera with frost-covered eyelashes while conducting fieldwork on a frigid winter day in Minnesota.
Field office chief Dan Daly smiles for the camera with frost-covered eyelashes while conducting fieldwork on a frigid winter day in Minnesota.
Field office chief Dan Daly takes a streamflow measurement through a hole drilled in the frozen Minnesota River in western Minnesota.
Field office chief Dan Daly takes a streamflow measurement through a hole drilled in the frozen Minnesota River in western Minnesota.
Field office chief Dan Daly and a student hydrologist pull a sled containing water sampling equipment on the frozen Minnesota River in western Minnesota.
Field office chief Dan Daly and a student hydrologist pull a sled containing water sampling equipment on the frozen Minnesota River in western Minnesota.
Scientist conducting measurement through hole drilled in ice covered surface of the Minnesota River in western Minnesota.
Scientist conducting measurement through hole drilled in ice covered surface of the Minnesota River in western Minnesota.
Field office chief Dan Daly smiles for the camera with frost-covered eyelashes while conducting fieldwork on a frigid winter day in Minnesota.
Field office chief Dan Daly smiles for the camera with frost-covered eyelashes while conducting fieldwork on a frigid winter day in Minnesota.
Field office chief Dan Daly takes a streamflow measurement through a hole drilled in the frozen Minnesota River in western Minnesota.
Field office chief Dan Daly takes a streamflow measurement through a hole drilled in the frozen Minnesota River in western Minnesota.
Field office chief Dan Daly and a student hydrologist pull a sled containing water sampling equipment on the frozen Minnesota River in western Minnesota.
Field office chief Dan Daly and a student hydrologist pull a sled containing water sampling equipment on the frozen Minnesota River in western Minnesota.