Sentence:  Along Wappinger Creek in Dutchess County , past the white church at Fishkill , past Verplanck 's Point on the east bank of the <WSD>Hudson</WSD> , to the white salt crusted roads of the Long Island Rockaways there was a watching and an activity of preparing for something explosive to happen . 
Meaning of the word marked with <WSD> tags:  a New York river; flows southward into New York Bay; explored by Henry Hudson early in the 17th century