Out of the Duluth office, the fisheries team focuses on identifying blockages along the Knife River and its watershed.

Two Winona County trout streams may benefit from proceeds of a new state sales tax to fund environmental protection and the arts, under a plan approved by a Minnesota House committee this week.

WEAVER, Minn. — Even in retirement from a hydrology career, Paul Wotzka keeps tabs on soil layers in southeastern Minnesota’s bluff country. “We have a groundwater sensitive parameter down here,” ...