There’s a manmade runoff gully on Mercer Island that now looks like a mountain stream. The transformation isn’t just for looks – it helps keep Lake Washington clean and healthy.
NWCN.com
Posted on September 3, 2011 at 6:50 PM
There’s a manmade runoff gully on Mercer Island that now looks like a mountain stream. The transformation isn’t just for looks – it helps keep Lake Washington clean and healthy.