Each of the portraits showed Noem sporting a cowboy hat while riding a horse. Noem, 53, has described horseback riding as a relaxing way to “detox.” ...

Tough by Nature: Portraits of Cowgirls and Ranch Women of the American West opens Thursday, May 9, and runs through Monday, Sept. 9, 2013, at the National Cowgirl Museum and Hall of Fame, 1720 ...