Business Casual of the Backcountry – A scoutmaster’s sighting of Eric Robinson

By Dave Cawley, KSL Podcasts

Marilyn Koolstra sits before a map of the High Uintas Wilderness during an interview on January 30, 2024. Photo: Dave Cawley, KSL Podcasts

Marilyn Koolstra, the wife of missing Australian trekker Eric Robinson, traveled halfway around the world in the hopes of joining the search for her husband. On her second day in Utah, she struggled to simply get in contact with the sheriff in charge of the effort.

“We started calling on Friday, asking to speak,” Marilyn said.

She expected to be connected to the people who were tasked with with finding Eric, thinking they’d be eager to hear from her.

“That was my expectation,” Marilyn said. “That was how we operated in Australia. The family, or the closest relatives, were in direct and regular communication with the headquarters of the search.”

So it came as a shock when the person who answered the phone at the Duchesne County Sheriff’s Office told Marilyn no one was available to speak with her, as they were all out in the field taking part in the search.

“They clearly had no news to share,” Marilyn said. “It was a little frustrating, but the whole scenario of him being missing was frustrating because how dare he?”

Marilyn Koolstra visits the Highline Trailhead 

It was Friday, August 12, 2011. The search for Eric was in its 5th day. Marilyn, her daughter Rachel Marsden and Eric’s hiking friend Devon McClive were staying at a home in Park City, about an hour-and-a-half drive from the search headquarters in Duchesne.

In the absence of a call from the sheriff, Marilyn decided the best use of time would be to post missing persons fliers at campgrounds and trailheads near where Eric’d planned to finish his hike.

Devon drove Marilyn and Rachel up the Mirror Lake Highway, to the Highline Trailhead just below Hayden Peak. They walked a short distance out on the trail, to a rocky outcropping that overlooked a forested expanse at the headwaters of the Duchesne River. It comprised just a small portion of the Uinta range, which Eric’d planned to hike across.

A woman, Marilyn Koolstra, walks toward a rock outcrop overlooking pine forest.
Marilyn Koolstra walks toward an outcrop overlooking the Duchesne River headwaters in the Uinta Mountains on Aug. 12, 2011. Photo: courtesy Marilyn Koolstra

Rachel felt awed by the scale of the mountain landscape.

“I remember thinking, ‘Eric, what were you thinking mate,’” Rachel said. “Once I could visualize it, I then was starting to probably prepare myself for any number of realities.”

Up to that point, Rachel’d held onto hope that Eric was alive but perhaps lost or incapacitated. Each passing day without any sign of him made it less likely he would turn up, overdue and apologetic for causing a ruckus.

Julia Geisler feels the clock ticking

Another of Eric’s hiking friends, Julia Geisler, was at that same time deep in the backcountry of the Uinta Mountains, assisting in the search. Julia and her partner Blake Summers were looking for any sign of Eric in the vicinity of Dead Horse Pass.

“We’ve never been a part of a search and rescue operation,” Julia said.

They suspected late-season snow that still draped portions of the Uinta Highline Trail at Dead Horse Pass might’ve been a hazard too difficult for Eric to overcome.

“At this point, he’s probably had an accident of some sort or he’s lost and he needs to be found, like he needs a rescue,” Julia said.

Hayden Peak, a prominent landmark in the Uinta Mountains, looms over the Highline Trailhead where Eric Robinson planned to complete his trek. Photo: Dave Cawley, KSL Podcasts

Trouble was, there hadn’t been any reported sightings of Eric since another hiker photographed him near Fox Lake on July 30. That sighting was almost two weeks prior, and roughly 60 miles of trail were between Fox Lake and the Mirror Lake Highway.

“We were feeling like we’ve got to just put in the long, long days on the trail to get out there and search as much as we possibly can,” Julia said.

Marilyn had also done her part by granting an interview to KSL-TV shortly after arriving in Utah from Australia. Her comments were spreading online, and were published in the Deseret News the following morning, on Saturday, August 13, 2011.

A scoutmaster’s encounter with Eric Robinson

The newspaper article made an immediate impact. On that Saturday morning, a man named Russ Alston was washing his Chevy Suburban when he received a call from a neighbor, Jay.

“He said, ‘Hey, did you read the paper this morning,’” Russ said. “I said, ‘No.’ And he said, ‘Read the front page of the local.’”

Russ retrieved his copy of the Deseret News, flipped to the B section and saw an article with the headline “Hiker Missing in Utah’s High Uintas.” Below the headline, Russ saw a photo of Eric Robinson.

“I read the full article and it was essentially that Eric Robinson was overdue at the pickup point on the western extreme of the Highline Trail,” Russ said.

Russ Alston sits during an interview with KSL-TV about the disappearance of Eric Robinson in 2019. Photo: KSL-TV

The article noted the last known sighting of Eric was at Fox Lake on July 30. Russ knew that was wrong. He’d seen Eric in the High Uintas Wilderness a few days later, on August 2. But Eric had not been on the Uinta Highline Trail at that time.

Russ’ encounter with Eric occurred about five miles south of the Highline, along a different trail that runs perpendicular to it. Russ, Jay and a third man were leading a trio of Boy Scouts up into the wilderness on a 50-mile trek.

“Kings Peak, the highest point in Utah, was the ultimate goal and we were going to take six days to carry out that plan,” Russ said.

A small tarn reflects an image of a mountain, Kings Peak, in late afternoon light.
A small tarn in the Yellowstone Basin of the High Uintas Wilderness reflects an image of Kings Peak and Anderson Pass. Photo: Dave Cawley, KSL Podcasts

They were only on their second day, pausing for snacks and water shortly before noon, when a well-equipped solo hiker came down the trail traveling the opposite direction.

“We chat with this gentleman for 20 to 30 minutes about his experience and what we’re doing,” Russ said.

That gentleman was Eric Robinson, and he reportedly told the Boy Scout group that he’d lost the Uinta Highline Trail the previous day while crossing Anderson Pass. A high-angle snowdrift covered a portion of the trail, forcing Eric to divert down a steep, rock-strewn slope in an effort to avoid it.

“His complaints were that he couldn’t see markings, and then he described kind of hand-over-foot letting himself down the face of the rock,” Russ said. “He had a good attitude, but I would say complaining about the condition of the trail.” 

This map shows portions of the Uinta Highline Trail, highlighted in red, and the Yellowstone Creek Trail, in purple. The location where Russ Alston encountered Eric Robinson is also marked.

Russ couldn’t quite understand how Eric’d then veered so far off course, dropping far down into the canyon of Yellowstone Creek rather than relocating the Uinta Highline Trail below the pass and continuing on it westbound.

“Because he was headed south now and we were headed north up into that basin,” Russ said. “We got maps out and I kind of described some of those options he had to return to the Highline.”

Russ told Eric if he continued south, down canyon for a short distance, he’d find a trail that split off going north and west. It would take Eric up through the Garfield Basin and eventually return him to the Uinta Highline Trail. Eric reportedly told Russ that’s what he would do, then headed off down the canyon.

Was Eric Robinson lost?

Russ Alston reported this information to the Duchesne County Sheriff’s Office, which notified Eric’s wife Marilyn Koolstra of the new information late in the day on Saturday, August 14.

“It was hopeful in some ways, but in other ways it was, ‘Well, if he’s off the trail, what now? Where do you search,’” Marilyn said. “I had no understanding of that, it was not my territory.”

The sheriff’s office informed Marilyn it would be sending searchers on horseback into the Garfield Basin in search of Eric, starting the next morning.

“So there was renewed home of some conclusion,” Marilyn said.

At the same time, Rachel felt a sinking feeling over knowing Eric had deviated from the Uinta Highline trail.

“There was the question of, ‘He was a little off the trail. He was a little bit lost. Did he actually know what he was doing? Was he a little disoriented,’” Rachel said. “In the absence of information, all these other questions would arise.”

Rachel drafted an email to send to friends and family of Eric back home in Australia. In the message, she noted the sighting of Eric by the Boy Scouts along Yellowstone Creek and said the date and time proved Eric’d been progressing “slower than he or others had anticipated.”

An email message about a sighting of missing Australian trekker Eric Robinson
Rachel Marsden sent this email to a group of Eric Robinson’s family and friends on Saturday, Aug. 13, 2011, updating them about the sighting of Eric by a Boy Scout group.

Although Rachel’s message carried a hopeful tone, she privately harbored a worsening fear that Eric might no longer be alive.

“Too much time’s passed,” Rachel said. “Something untoward’s happened. But what’s that untoward, and are we actually going to figure that out?”