A South Dakota biofuels CEO and his family bought land near Great Bear about two years ago, then donated 20.5 acres to expand a 220-plus-acre park that now draws more than 200,000 visitors a year

• Jeff Broin, founder and CEO of POET, and his wife announced the donation this week.
• The land will become part of Great Bear, a park covering more than 220 acres that has been a recreation and conservation destination f