Green Mountain Reservoir Hits Historic 14% Level

Steamboat Springs —The water level sits low enough to expose a ring of pale, cracked mud against the dark rock of the dam wall. It is a visual confession. Standing on the banks of Green Mountain Reservoir, somewhere between Silverthorne and Kremmling, you don’t need a climate model to understand the crisis. You just need to look at the empty space where the water should be.

There is a common refrain among politicians campaigning on the Western Slope: we need more storage. Build more dams. Dig deeper reservoirs. It sounds logical, doesn’t it? If we have a drought, surely holding more water is the solution. But if you visit Green Mountain, that argument starts to crumble.

The Craig Daily Press reported that during Labor Day weekend, the reservoir was only 14% full. That means it was 86% empty. To put that in perspective, it is drier than Lake Powell, which is roughly 700 river miles downstream. How can a reservoir built to solve water scarcity be so empty? Because building capacity doesn’t create water. It just holds what arrives. And this year, very little arrived.

Green Mountain was a compromise born in the 1930s. Farmers in the Fort Collins-Longmont-Greeley area wanted to pull water from the headwaters near Grand Lake. Western Slope irrigators pushed back, fearing their farms in the Grand Junction area would lose the late-season water needed to finish their crops. The solution was a pool of 66,000 acre-feet reserved for those downstream users. For over 110 years, that system worked. Deliveries continued through October, sometimes later.

This year broke the pattern. For the first time in the reservoir’s history, deliveries ended in late August. The Colorado River Water Conservation District had warned in April that Green Mountain was at its lowest level since it filled during World War II. That threat materialized quickly. By late summer, the water was simply gone.

It wasn’t entirely a disaster, though. Cooperation saved the day. The Colorado River District and the Colorado Water Conservation Board chipped in more than $1 million to buy water rights. They tapped into headwaters reservoirs like Wolford, Williams Fork, and Ruedi. Front Range diverters helped too. Irrigators received about 50% of their normal allocation. Many switched to crops that could survive on less moisture. Still, the Grand Valley Water Users Association, which operates the canal, had to stop deliveries on September 3.

The Government Highline Canal diverts from the main stem at Roller Dam, near Palisade. It stretches for 55 miles, almost to the Utah border. It feeds farms and orchards across the region. When the water stops, the fields dry out. The orchards struggle. The economic ripple effects are felt from here to the state capital.

So, should we build more? Maybe. But let’s be honest about what we’re buying. Storage is a buffer, not a generator. It smooths out the peaks and valleys of annual rainfall. But if the average peak drops, the buffer empties faster. We are seeing that now. The reservoir is a mirror reflecting the sky above us. And the sky is getting thinner.

The mud on the bank is still wet. It smells like earth and decay, a primal scent that predates any dam we’ve ever built. It reminds us that water is not just a resource to be managed. It is a living thing, moving and breathing with the seasons. We can try to hold it back, to control its flow, to make it serve our needs. But eventually, it slips through our fingers. And when it does, we’re left standing in the empty space, wondering where it went.