A 24-year-old New Canaan man was killed in a rock slide Saturday, Summit County Police in Colorado have confirmed.

Rob Jansen died from injuries sustained in the slide near Hagerman Peak, about 11 miles from Aspen, Colo.

The Pitkin County sheriff's office received a call at 2:50 p.m. on Saturday, according to a press release. Rescuers were unable to reach Jansen because of a separate search and rescue effort in nearby South Maroon. Based on Jansen's location, the Gunnison County sheriff's office requested Mountain Rescue Aspen (MRA) to perform the recovery.

On Monday, about 8:51 a.m., a Flight for Life helicopter picked up two MRA members and returned them to the vicinity of Hagerman Peak, the release stated. The MRA team reached Jansen about 11 a.m, according to a statement. A National Guard helicopter air-lifted Jansen to the Aspen/Pitkin County Airport.

According to his Facebook page, Jansen was living in Denver and was employed as a geology technician at Bill Barrett Corp., also in Denver.

"He's one of those people that you're lucky a little bit of him rubs off on you," friend and co-worker Dan Pritchard said. "We ran together, we climbed together. He paced my wife at the Leadville 100 last weekend (a 100-mile race through the Rocky Mountains). We ran the Leadville Marathon together, well, not together; he beat me by an hour and a half. I saw him at the beginning."

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Pritchard continued about Jansen, "He was humble, upbeat. He's just one of those guys that you meet every once in a while. You wonder what is parents did that made him that great."

Kurt Reinecke, executive vice president of exploration at the Barrett Corporation, said Jansen was one of five geotechs, an entry-level stepping stone to becoming an oil and gas geologist.

"Robert was definitely one of the best," Reinecke said. "He had caught my eye with his enthusiasm, his desire to put in the extra hours and the extra effort. He was definitely on the rise, moving up through the company."

He added that Jansen never turned down an assignment.

"He was always looking to challenge himself," he said.

Reinecke said employees were in shock after hearing of the accident.

"Most people walked around today just in stunned silence, couldn't believe it happened," he said. "Several people went home early because they just needed to spend time with their own families and grieve the loss."

Jansen, a 2007 New Canaan High School graduate, received his degree in geology from Dickinson College in 2011.

Tyler Woods and Megan Davis contributed to this story