Amy Martin, creator of Threshold, talks about season 1 of her podcast, which focused on the past, present, and future of bison in America. See photos from season 1 and a preview of season 2 at thresholdpodcast.org.

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* This week in Western history: The (re)discovery of Mesa Verde

Host/producer: Aaron Weiss

Feedback: [email protected]

Music: Purple Planet

Photo: Bison on the Fort Peck Indian Reservation, Threshold Podcast