What is this?
We’ll find out.
Let’s go back to Lambert’s Cove Beach, which we’ve visited several times lately.
You walk down the path to the beach, turn right at the shore, and take a walk. A stroll of a few hundred yards will take you to a place where Black Brook, one of the Vineyard’s small streams, flows into Vineyard Sound.
You’ll find no delta here, for little material is ever eroded from the watershed of this brook. The freight that this fluid carries is color. The color comes from the steeping of innumerable millions of leaves in the bogs and swamps that feed this flow. Varying rainfall and the passing of seasons yield color that ranges in intensity from weak tea to brownish-black.
The episodes of dark color have caused many a child to prefer the name “Coca-Cola Brook”.
Whatever the name, this little stream is known and loved by many.
If you start walking upstream, a short distance from the mouth of the brook you’ll notice a mysterious and cracked boulder, under the wind-tickled surface of the tea-colored water.
Turn upstream from the split stone, walk streamside, then go over the crest of the dunes. Where might this water might be coming from? You look across a flat, marshy area, with a mix of reeds, shrubs, and invading cedars. The stream turns away from the dunes and heads towards distant woods. The source is some miles inland, in the next town.
If you look down, past your feet to the stream’s edge, there will be textures, waves, ripples and textures under the surface of the water.
Created by the flow of water, some patterns are reminiscent of ridges on your fingers and toes.
Pressed into the streambed are the footprints of a crossing creature.
The patterns are ever different. The variety of the lines and shapes are produced by variations in water depth, direction of current flow, of current velocity, and of sand characteristics. There are plenty of other factors involved. I don’t even begin to know everything that goes into making these patterns.
At the start of the post was the question, “What is it?”
“It” is a rock in Black Brook. Can you see it?
I think the rock looks a little like the planet Jupiter.