Lakes & Rivers

As the home of the headwaters of the Colorado River and to Colorado's largest natural lake, no other place can offer more water and more adventure than Grand County, Colorado.

Grand County has the most accessible water in Colorado; think of it as your own personal playground. Swimming, boating, fishingthe list of ways to enjoy our waterways is endless. Not only does Grand County water serve as a source of entertainment and recreation, it is the number one source of water to Denver and the Front Range. Because of this, Grand County has the most abundant and valuable water in the state. Learn more about our lakes and rivers below.

Blue River


Access: South of Kremmling Along HWY 9

The Blue River is a Gold Medal fishery, and one of the most scenic rivers in Colorado. Learn more about this spur from the Colorado River, and explore things to do on the Blue River waters.

Colorado River


Access: Throughout RMNP & Grand County

The 1,450-mile Colorado River passes through parts of seven U.S. and two Mexican states, and it all starts right here in Grand County. Learn more about the Colorado River Headwaters.

Fraser River


Access: Winter Park & Fraser

The Fraser River is the first main tributary river to the Colorado River, and it offers gold-medal waters for fisherman. Learn more about the Fraser River including fly fishing and nearby hiking trails.

Grand Lake


Access: Town of Grand Lake

With over 4 miles of shorline, Grand Lake is the largest and deepest natural body of water in Colorado. Learn more about things to do on and near Grand Lake, and discover local events that take place on the lake!

Green Mountain Reservoir


Access: South of Kremmling on HWY 9

Green Mountain Reservoir serves the Colorado Western Slope community by providing water from the Colorado River, but it also provides the perfect location to be in the great outdoors. Learn more, and explore things to do on the water and near the reservoir.

Lake Granby


Access: Town of Granby

Lake Granby is the third largest body of water in Colorado and was created in 1950 by the the Granby Dam and the Colorado-Big Thompson Project. Learn more about things to do on or near the lake, and discover events on Lake Granby.

Shadow Mountain Lake


Access: Town of Grand Lake

Shadow Mountain Lake is a high-elevation reservoir near the headwaters of the Colorado River. Learn more about the lake, explore things to do on the lake and near the lake, and discover nearby events.

Water Access / Flow


It All Starts Here

Sixty percent of the water in Grand County is diverted elsewhere, and there are plans underway, mostly from Front Range communities, to divert as much as 80 percent of the county's headwaters in the near future. Learn more about where Grand County's water ends up.

Williams Fork River


Access: Town of Parshall & Hot Sulphur Springs

The Williams Fork River, originating from the western slope of the Continental Divide, is a tributary to the Colorado River. Learn more about things to do on and near the Williams Fork River.

Wolford Mountain Reservoir


Access: North of Kremmling on HWY 40

Located on Muddy Creek, Wolford Mountain Reservoir offers plenty of recreation on the water and even more adventure surrounding the reservoir. Learn more about Wolford Mountain Reservoir.

Get Inspired & Explore

Rafting, Fishing & Hot Springs

Water is everywhere in Grand County, and there are lots of exciting activities for you and your family to explore! Come make a splash in the beautiful Rocky Mountains.

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15 Grand Summer Adventures

As the snow melts and the rivers swell in Grand County, our thoughts turn to the simple pleasures of summer... like these 15 things you ought to try before the snow returns in late fall.

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Guide to Boating on Grand County's Lakes

Is there anything better in summertime than boating on a mountain lake? If you ask us, the answer is "no, not really." While Colorado has dozens of great reservoirs and lakes to set sail on, few destinations offer so many choices in one place as Grand County. To help you navigate our five mountain lakes, we've compiled a guide to boating them:

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