In a state that is famous for mountain peaks and high altitudes, you might not expect to find many places to enjoy warm water for swimming or fishing. Yet, Colorado is home to a handful of hidden gems that offer this very thing, especially late in the summer.

Read More: Colorado's Deepest Lake is Also the State's Biggest Natural Lake

Keep reading to find out where you can enjoy Colorado waters with warm temperatures, especially by September, which is perfect for several different activities.

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Colorado's Warm Water Lakes and Reservoirs

Two of Colorado's warmest lakes include Lake Pueblo and Cherry Creek Reservoir. Both these lakes maintain warm water temperatures late in the season while other Colorado waters are growing colder. Unlike some of Colorado's larger bodies of water that are fed by rivers bringing snowmelt and cold water down from the mountains, the warmer lakes stand out as such due to geographic location, or because they are reservoirs created in areas meant for recreational use. Water temperature in both locations remains in the 70s and 80s well into September and even later.

Read More: Here is Where to Find 12 of Colorado's Beautiful Blue Lakes

Top Spots for Warm Water Fishing

Both Boyd Lake State Park and Horsetooth Reservoir in Northern Colorado are known as warm water sources that offer great fishing opportunities in September and October. Boyd Lake State Park is another great place to swim and enjoy water activities through September, while Horsetooth Reservoir is a thriving environment for several types of fish with warmer water temperatures compared to several bodies of water through September and October.

LOOK: 10 Beautiful Colorado Lakes to Visit This Summer

It's next to impossible to select which Colorado lake or reservoir is the most beautiful in the state. We've chosen our top ten in the gallery below, and we will leave it up to you to decide, which is your favorite.

Gallery Credit: Wesley Adams

MORE: The 15 Largest Lakes Found in Colorado

Take a look at Colorado's Top 15 largest lakes and reservoirs. Find out where they are in the state, and what landmarks are nearby each lake/reservoir. Colorado's largest reservoir is just down the road on Highway 50 not far from the Curecanti Recreation Area.

Gallery Credit: Wes Adams

KEEP GOING: 7 Hidden Colorado Lakes Most People Don't Even Know About

The Centennial State is home to more than 3,000 lakes and reservoirs that are a popular destination for tourists and locals alike. While some of the larger reservoirs are more easily accessed near larger cities, several hiking trails leading into the mountains can take you to some of the most breathtaking bodies of water that many people didn't even know existed.

Gallery Credit: Wesley Adams