About 25 U.S. Postal Service employees braved the frigid weather on Sunday to protest a proposal to end Saturday mail delivery.
The group stood outside the main Rapid City post office on East Boulevard holding signs and posters that read "save our Saturdays" and "honk if you want 6 day delivery."
"I really see it as a death spiral for the post office," letter carrier Richard Hatzenbuhler said Sunday at the rally.
"What happens every time we make cuts is it hurts customer service," Hatzenbuhler said. "Then we lose customers and it just gets worse. We're here for customer service."
The rally in Rapid City to save Saturday delivery was one of hundreds nationwide. Hundreds of people gathered at rallies in larger cities including Detroit, Chicago and Philadelphia.