Uinta Triangle

Australian trekker Eric Robinson loved to hike. He had a passion for walking in the wilderness, sometimes spending weeks alone in the outdoors. Until one time, he didn’t come home. Eric vanished into a mountain range that has a habit of swallowing people.

Uinta Triangle tells the story of the desperate search for Eric Robinson. Host Dave Cawley (journalist and creator of the hit true crime series COLD) follows in Eric’s footsteps. And he joins Eric’s wife, Marilyn Koolstra, in her worldwide hunt for answers about her missing husband.

Uinta Triangle is an immersive story of investigation and adventure. It’s also an exploration of how far any of us are willing to go for the people and the places we love.

Created and Produced by KSL Podcasts
Sales and Distribution by Lemonada Media https://lemonadamedia.com/

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Episodes

A Picture’s Worth

EPISODE 8 -- Eric Robinson took 77 photographs on his last hike. Those images, recovered with Eric’s remains in 2016, tell the story of what he experienced on the Uinta Highline Trail. They also contain clues about why Eric diverted from the trail in his final hours. Dave Cawley follows those breadcrumbs to the brink in search of answers. See omnystudio.com/listener for privacy information.

Jul 01, 2025•1 hr 13 min•Season 1Ep. 8

Ruby

EPISODE 7 -- Marilyn Koolstra returns home to Australia without any answers about what happened to her missing husband, Eric Robinson. As months turn to years, she’s forced to accept the awful reality of his death at some unknown place in the Uinta Mountains. But an accidental discovery in those mountains will one day stun everyone involved in the search for Eric. See omnystudio.com/listener for privacy information.

Jun 24, 2025•1 hr 3 min•Season 1Ep. 7

Dead Reckoning

EPISODE 6 -- The last glimmers of hope fade as the search for Eric Robinson enters its final stage. The Duchesne County sheriff, running out of time and money, makes one last push to find him. Searchers brave the weather and the wilderness in the hopes of sending Eric’s wife, Marilyn Koolstra, home to Australia with answers about her husband’s fate. See omnystudio.com/listener for privacy information.

Jun 17, 2025•1 hr 11 min•Season 1Ep. 6

Business Casual of the Backcountry

EPISODE 5 -- As news coverage of the search for Eric Robinson spreads, a Boy Scout leader tells of spotting Eric far off the Uinta Highline Trail. This encounter along Yellowstone Creek raises questions about Eric’s state of mind and expands the search area to include an even greater swath of High Uintas Wilderness. Was Eric lost? Uinta Triangle host Dave Cawley poses a new theory. See omnystudio.com/listener for privacy information.

Jun 10, 2025•1 hr 11 min•Season 1Ep. 5

No Trace

EPISODE 4 -- The wife of missing trekker Eric Robinson flies halfway around the world, from Australia to Utah, in search of her husband. A rural sheriff struggles to organize an effective rescue across the vast expanse of the High Uintas Wilderness Area. An unlikely meeting along the Uinta Highline Trail brings Eric’s friends into contact with some important new allies at Dead Horse Pass. See omnystudio.com/listener for privacy information....

Jun 03, 2025•1 hr 2 min•Season 1Ep. 4

The Tyranny of Distance

EPISODE 3 -- Eric Robinson doesn’t show up at the end of the Uinta Highline Trail. Eric’s friend reports him missing, kicking off a search-and-rescue mission. Marilyn Koolstra, meanwhile, feels powerless to help her husband from half a world away. Uinta Triangle host Dave Cawley sets off on his own solo hike, looking for clues about Eric’s disappearance. See omnystudio.com/listener for privacy information.

May 27, 2025•1 hr•Season 1Ep. 3

Aspiring

EPISODE 2 -- Eric Robinson forges a new friendship on the John Muir Trail, while an old friendship frays under stresses of the trail. From the High Sierra to the Himalaya, Eric’s aspirations in the outdoors continue to grow. His wife, Marilyn Koolstra, accompanies Eric on some of his adventures. But a rift emerges when Eric insists on going out alone after a few close calls with death in the mountains. See omnystudio.com/listener for privacy information....

May 20, 2025•1 hr 4 min•Season 1Ep. 2

Overdue

EPISODE 1 -- Eric Robinson wanted to hike the world’s greatest trails. He was happiest when spending weeks in the wild, and he often went out alone. Eric’s wife, Marilyn Koolstra, supported him in this goal. But the situation changed when Eric went missing on a solo trek to the Cascade Saddle in New Zealand. This episode traces the origins of Eric Robinson’s passion for trekking, the past traumas he tried to soothe in nature, and the midlife romance that brought Marilyn into his life. See omnyst...

May 20, 2025•1 hr 1 min•Season 1Ep. 1

What Happened to Eric Robinson?

An Aussie who loves hiking solo goes missing in the rugged mountains of the American West. Dave Cawley, the investigator behind the podcast COLD, heads into the wild to answer the question: What happened to Eric Robinson? See omnystudio.com/listener for privacy information.

May 09, 2025•2 min

Hosted on Omny Studio

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