Boulder County

Local

Toxic algae closes Boulder Reservoir swim beach on hottest day of year so far

Boulder's swim beach shut down Monday after officials detected toxic blue-green algae in the reservoir, closing a popular summer destination on the hottest day of the year so far.

Danielle Kreutter

Related Stories
Boulder Co. climate grant helps mobile home park residents prepare for disasters

Colin Riley
High temps causing pavement buckling on US 36 Bikeway: Boulder Co. government

Katie Parkins
Boulder has made climate progress, but time is running short

Colin Riley
Longmont buys former YMCA facility to turn into city recreation center

Sophia Villalba

colin riley contact thumb.png

Connect with Colin in Boulder County

Reach out to Denver7's Colin Riley about a story, topic or issue you want him to look into in Boulder County. Let us know what is on your mind with the contact form below.

First name

Last name

Email

Phone number

Subject

Body

Security Check

adria 480x360.png

Connect with Adria, Denver7's dedicated Aurora & Arapahoe County reporter