Boulder County warns residents to keep an eye open for summer algal blooms

As summer temperatures swing into the 90s, you and your four-legged friends are likely looking for ways to stay cool. And though a dip in one of our local ponds may look tempting, be aware that standing bodies of water may be home to blue-green algae.

You may have seen the caution signs at trailheads this summer or in summers past, typically at Coot Lake, the Boulder Reservoir, or, most recently,...