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Best Place to See the Colorado State Insect Denver 2014 - Castlewood Canyon State Park

Castlewood Canyon State Park

2989 S. Highway 83

Franktown, CO 80116


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The best way to find our state insect — the Colorado Hairstreak butterfly — is to first find a Gambel oak tree, where said butterfly prefers to spend its time flitting around and dining on tree sap, honeydew and raindrops (adorable!). Castlewood Canyon State Park, near Franktown, happens to be full of Gambel oaks and is therefore a prime location for the Hairstreak. Optimal viewing season is from June to August — and you'll know you've spotted one by its colors: purple and black, just like a certain Colorado baseball team...

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