CountiesSummit County
ColoradoReservoirSummit County
Dillon Reservoir
Fed by the Blue River, Dillon Reservoir holds roughly 3,233 acres of water in Colorado. You will find it in Summit County. Denver Water / Town of Dillon manages it. This guide maps 1 named swimming spot around its shoreline.
Coordinates39.6074, -106.0551
Surface area3,233 acres
Full pool733.7 ft
RiverBlue River
Managed byDenver Water / Town of Dillon
Swimming beaches on Dillon Reservoir
1 named swimming spot and shoreline access points, from USGS GNIS, Recreation.gov and the Forest Service. None is staffed by a lifeguard unless the operating agency posts one.
Dillon Reservoir on the map
Lake center, swimming spots and access points.
Weather and water temperature
Air temperature and wind from Open-Meteo. Water temperature only when the lake has a public sensor.
Weather data by Open-Meteo
A closer look at Dillon Reservoir
Dillon Reservoir sits at 39.6074, -106.0551. Surface elevation is about 9,016 feet. The Blue River carries the outflow.
If the water looks like pea soup or paint, stay out and report it to the managing agency. Most Colorado day-use areas open for the summer season and close outside it. No public sensor reports water temperature at Dillon Reservoir, so the panel shows air temperature and wind.
Ask the managing agency directly if the level matters for your trip. Nobody publishes a continuous level for Dillon Reservoir in a form this guide can read, so the page carries access and weather instead.
Around Dillon Reservoir this guide maps 1 named swimming spot. These come from Recreation.gov (RIDB). Silverthorne Area are on the list. Unless the operating agency says otherwise, treat these as unsupervised swimming.
Nearby water includes Green Mountain Reservoir (Colorado, 24 mi), Turquoise Lake (Colorado, 29 mi) and Williams Fork Reservoir (Colorado, 29 mi). In all, 48 lakes in Colorado are covered here.
Questions about Dillon Reservoir
What is full pool at Dillon Reservoir?
Full pool is 733.7 ft. Water above that level is flood storage and is released as conditions allow.
Can you swim in Dillon Reservoir?
Yes. This guide maps 1 named swimming spot around the lake, including Silverthorne Area. None is staffed by a lifeguard unless the operating agency posts one.
How big is Dillon Reservoir?
About 3,233 acres.
What other lakes are near Dillon Reservoir?
The closest in this guide is Green Mountain Reservoir, about 24 miles away in Colorado.
Lakes near Dillon Reservoir
Other lakes in this guide, ordered by distance.
Turquoise Lake
Turquoise Lake covers about 1,780 acres in Colorado. You will find it in Lake County. USFS San Isabel NF (USBR-owned) manages it.
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Carter Lake
Carter Lake covers about 1,110 acres in Colorado. You will find it in Eagle County. Larimer County Natural Resources manages it.
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Lake Granby
Lake Granby covers about 7,260 acres of the Colorado River in Colorado. The lake is in Grand County. Management is in the hands…
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Grand Lake
Grand Lake is a reservoir of some 507 acres on the outflow =, in Colorado. The lake is in Grand County. Town of Grand Lake / USBR…
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Standley Lake
Standley Lake is a 1,200-acre reservoir on the Big Dry Creek in Colorado. It lies in Jefferson County. City of Westminster…
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Chatfield Reservoir
Chatfield Reservoir is a reservoir of some 1,500 acres on the South Platte River, in Colorado. You will find it in Douglas…
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Sources
Every figure on this page comes from one of these public sources.