Utah's Hidden Rock Glaciers Could Boost State Water Supply

Hidden beneath Utah's majestic peaks, frozen water reserves are slowly releasing precious supplies to a state desperately fighting drought.

Brigham Young University researchers just wrapped up a groundbreaking study of rock glaciers, massive ice formations disguised as piles of rocks that keep water flowing months after mountain snow disappears. What they found surprised even the scientists themselves.

After hiking to nearly 100 rock glaciers across Utah and Colorado during a six-week expedition, the team discovered that almost all of them were actively releasing water. Professor Greg Carling admitted he hadn't expected such promising results.

"What we ended up finding out was nearly all of them had water," Carling explained. "Especially late in the summer, when we need that water the most."

Rock glaciers work like nature's slow-release water bottles. While they look like ordinary rock piles, they're actually flowing masses of ice and debris moving downhill like regular glaciers. The rocky exterior protects the ice inside from melting too quickly, releasing water gradually throughout dry summer months.

Mount Timpanogos hosts one of these hidden reserves, quietly feeding Emerald Lake near its summit. For a state that gets 95% of its water from snowpack, these underground ice reserves represent an important and largely untapped resource.

The research comes at a critical time. Over 90% of Utah currently sits in severe drought conditions or worse, according to recent U.S. Drought Monitor data.

Graduate student Lerato Thoka-Cole highlighted another advantage: rock glaciers recharge themselves. "Once it snows again, the water will go back into the rock glacier, and the ice will be stored right back in," she said. "They're not as exposed as normal glaciers are."

The Ripple Effect

The team's water quality tests revealed another piece of good news. Samples from these high-alpine sources came back remarkably clean, meaning communities could potentially tap into them with minimal treatment.

The research has global implications too. Thoka-Cole, who comes from a region where water scarcity affects millions, sees parallels between Utah's hidden ice reserves and untapped aquifers back home in Africa. She hopes to apply these findings to help communities access groundwater that's been trapped underground for generations.

The Utah Geological Survey collaborated with BYU and other state universities on the project, recognizing that understanding every piece of the water puzzle matters. As climate patterns shift and droughts intensify, knowing exactly where water hides and how it moves through ecosystems becomes crucial for long-term planning.

These frozen fortresses might just be the backup supply Utah's been looking for all along.