And the answer is "Blue Lake"

Not that there have been frustrated inquiries about this weekend’s “where is this?” question.

Still the question shouldn’t go unanswered. And the answer is: Blue Lake, in eastern Multnomah County, just south of the Columbia River.

As for the mechanical waterbug, barely visible in the center of the photo, it’s a solar-powered device that churns up the water beneath the surface to prevent the growth and spread of algae.

Now you know.