Nearly half of all land in the West of the United States is owned by the federal government. Some people are trying to change that; they argue that part of it should be used for housing, amid a nationwide shortage. But this debate about land and development has touched a nerve in the Western psyche - tapping into bigger fears that the old way of life is under threat. It’s about identity, trust, and the growing popularity of cowboy culture, driven in part by the TV series Yellowstone.

In an increasingly polarised United States, this debate about public land is uniting cowboys, environmental activists, conservatives, and progressives. Ellie House reports from Montana, a state where the prospect of a public land sell-off is deeply unpopular, and where people feel like their cultures and traditions are at stake.

This episode of The Documentary comes to you from Assignment, investigations and journeys into the heart of global events.