Sentence:  Along Wappinger Creek in Dutchess County , past the white church at Fishkill , past Verplanck 's Point on the east bank of the Hudson , to the <WSD>white</WSD> 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:  being of the achromatic color of maximum lightness; having little or no hue owing to reflection of almost all incident light