Where East Greenbush slopes down toward the Hudson, the river throws fog over the Papscanee flats and it lies in the grass until the sun clears the bluff. Emerald Green Lawns And Landscaping works that bottomland and the streets on the height above it — mowing, edging, feeding the turf, keeping beds neat straight through the growing months. June is when the effort shows: grass thick enough to hold a stripe, borders cut clean, the color as deep as the name promises. The spring cleanup clears off what winter left behind, and the fall one takes the leaves before they mat down over the crown. A lawn along this river is a small piece of a very old valley, and it deserves to be kept well.