Charles River-4: Natick, Newton, Waltham

To Waltham, to Newton Lower Falls, and to South Natick, all in devotion to the river. Our last outing of 4, the weather graced us with sun, warmth, dryness. Then folded in at our last stop: Waltham, around 7:15 pm after 4 hours in the field. Heavy clouds, some wind, turning colder suddenly. Just as I was walking over the Moody St dam, I noticed the warm, not lasting, late reddish light of the day making down river glow. Then the clouds. Variations on Spring Light.