With The Wilderness Act's 50th birthday being celebrated throughout the year, various units of the National Park System are taking pride in their backyard wilderness areas. In a new video produced by the National Park Service, the Saguaro Wilderness Area in Saguaro National Park is showcased.

To understand the approach the filmmakers took, here's an explanation:

They say that history is in the eye of the beholder, but what if the beholder is wilderness itself? What do our actions as a species look like to a member of the wilderness community? A personal history from the eyes of the saguaro cacti, this video recounts how over time humans have transformed Saguaro National Park's desert landscape. Saguaro cacti are among the oldest members of the Sonoran desert community, and over centuries and generations, the cacti have seen their home change dramatically as groups of humans moved in. Over the course of this memoir, we see poetic vestiges of human settlement in the desert, echoes from a time before wilderness reclaimed its own.

And here's the video...