CountiesJefferson County
ColoradoReservoirJefferson County
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 (Standley Lake Regional Park) manages it.
Coordinates39.8625, -105.1250
Surface area1,200 acres
RiverBig Dry Creek
Managed byCity of Westminster (Standley Lake Regional Park)
Swimming beaches on Standley Lake
No named swimming beach is mapped yet for this lake. Access is through agency day-use areas and boat ramps listed below. We add beach pages only when we can confirm a name, coordinates and an operating agency.
Standley Lake 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
What to know before you go to Standley Lake
On the map, Standley Lake is centered near 39.8625, -105.1250. It lies at roughly 5,509 feet of elevation. The Big Dry Creek carries the outflow.
Where there is no marked beach, entry is usually from a boat ramp or an unimproved bank. No agency lists a named swimming spot at Standley Lake. Shoreline access here is likely informal. If you need a named beach, Surprise Beach on Lake Granby is some 43 miles from here.
Most Colorado day-use areas open for the summer season and close outside it. Inland lakes are not monitored the way ocean beaches are, so posted signs matter more here. Water temperature is not measured at this lake by any public agency we read.
Local marinas and park offices usually know the current state of the water better than any feed. There is no live level reading for Standley Lake. The agencies that run this water do not publish one openly, and we do not estimate what has not been measured.
If Standley Lake is busy, the nearest alternatives here are Ralston Reservoir (Colorado, 7 mi), Gross Reservoir (Colorado, 14 mi) and Boulder Reservoir (Colorado, 16 mi). Colorado has 48 lakes on this site in total.
Questions about Standley Lake
Is there a beach at Standley Lake?
No named swimming beach appears in the federal and state datasets this guide reads. Check the operating agency for day-use areas on the ground.
How big is Standley Lake?
About 1,200 acres.
What other lakes are near Standley Lake?
The closest in this guide is Ralston Reservoir, about 7 miles away in Colorado.
Lakes near Standley Lake
Other lakes in this guide, ordered by distance.
Cherry Creek Reservoir
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Chatfield Reservoir
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Lake Granby
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Grand Lake
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Horsetooth Reservoir
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Sources
Every figure on this page comes from one of these public sources.