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Rating

★★★★★

4.8

from

590 reviews

Description

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

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Podcast episodes

Check latest episodes from Uinta Triangle podcast

Bones in the Backcountry

2026/05/20

Cases of missing people are sometimes solved by the random discovery of bones in the backcountry. Hunters and hikers stumble across human remains in the most unexpected of places. Utah Chief Medical Examiner Dr. Deirde Amaro and Chief Medical Examiner Investigatigator Dr. Cory Russo share advice for what to do if you ever discover human bones far from civilization.

Groundskeeper Eric

2026/05/20

Eric Robinson's disappearance left a void in the lives of the people who loved him, most notably his wife, Marilyn Koolstra. Uinta Triangle host Dave Cawley joins Marilyn in a visit to Valkstone Primary School, where Eric worked as a groundskeeper during his retirement, to reflect on his life and legacy.

Lost Boy

2026/05/20

A 3-year-old boy wanders away from camp in the Uinta Mountains, leading to a panicked search. Uinta Triangle host Dave Cawley covered the case of Benjamin Myrup's disappearance when it happened. In this bonus episode, Dave revisits the case years later to learn what Benjamin's parents experienced behind the scenes of the search.

Ute Words

2026/05/20

The word "Uinta" is foreign to many people, but not to native speakers of the Ute language. Larry Cesspooch, a member of the Ute Indian Tribe of the Uintah and Ouray Reservation, shares what the Uinta Mountains mean to himself and his people. Uinta Triangle host Dave Cawley also asks for Larry's help in learning the meaning of other Ute placenames, which are critical in helping keep the Ute language from becoming extinct.

The Disappearance of Lynn Simmons

2026/05/20

Late in the summer of 1940, a government surveyor named Lynn Simmons vanished near Lamotte Peak in the High Uintas. Crowds of searchers scoured the mountain wilderness but never found any trace of Lynn. Over time, his case was forgotten by all but a few relatives. In this bonus episode, Uinta Triangle host Dave Cawley connects with Lynn's family to bring his memory back to the forefront.

Why We Hike

2026/05/20

Isn't it dangerous to hike solo? News reporter Shara Park questions Uinta Triangle host Dave Cawley about the risks and rewards of heading into the backcountry alone. Together, they see how Eric Robinson's drive to tackle long trails came from a place of deep longing he couldn't deny.

Sounds of the Wild

2026/05/20

Field recordings of nature sounds are woven through the Eric Robinson story in the Uinta Triangle podcast. In this bonus episode, podcast producer Jenny Ament and host Dave Cawley nerd out about field recording tools and techniques. Find out what it takes to haul microphones deep into the backcountry, to capture audio of wild places.

A Picture’s Worth

2025/07/01

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.

Ruby

2025/06/24

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.

Dead Reckoning

2025/06/17

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.

Business Casual of the Backcountry

2025/06/10

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.

No Trace

2025/06/03

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.

The Tyranny of Distance

2025/05/27

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.

Aspiring

2025/05/20

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.

Overdue

2025/05/20

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.

Podcast reviews

Read Uinta Triangle podcast reviews

4.8 out of 5

590 reviews

★★★☆☆

Sdr1031 2026/09/30

Great but overly long

I loved the story overall and quality is great. As a non-hiker, non-outdoorsy person, I was still very interested. As bad as this may sound it was too...

★★★★★

A_Loot 2026/09/30

Stays with you

One of the best podcasts I've ever heard. I hike in the Uintas so this was close to my heart. I was so moved by the family's experience. I will proba...

★★★★★

Kiki Janks 2026/09/29

Beautifully done!

I live in a mountain town in Colorado that attracts people from all over the country/world to climb 14ers (mountains at/above 14,000 feet above sea le...

★★★★★

Karge84 2026/09/28

Binge worthy!

I love Dave Cawley’s COLD podcast and thought I would give Uinta Triangle a try. I was immediately enthralled by the story and the attention to deta...

★★★★★

Better audio needed 2026/09/22

Awesome

Really thorough and detailed reporting. My first Dave Cawley podcast and had to get used to his style but it’s great. I loved the topic as I’m a big h...

★★★★★

Erin Sk8 2026/09/22

Exceptional

One of the best podcasts I’ve listened to in a long time. As someone who has zero interest in camping and is not very outdoorsy, I didn’t expect to lo...

★★★☆☆

BlazeJester 2026/07/21

Well told, but the screaming ads...

Love the podcast; 10/5 stars for the storytelling, production, and execution of this vision. HOWEVER. I understand you have to have ads, but 2.5 minut...

★★★★★

foxyflair@gmail 2026/07/10

Outstanding!

A truly incredible story. The production was more than captivating. The profound, tragic and incredibly inspirational life of Eric Robinson is moving!...

★★★★★

zinger salad 2026/07/09

Fabulous listen

What a tremendous podcast. Even though you have an idea of how it ends it is so masterfully told and described it keeps you on pins and needles. Dave ...

★☆☆☆☆

Thecoffeeisperfect 2026/06/17

Too long

I could do without the political commentary on feminism, racism and environmentalism. Yawn.

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