What story does Dillard tell about a Native American woman and winter?

She relates a story about someone who asks a Native American, whose tribe has lived in the area for generations, if the winter is going to be harsh this year. The Native American nods and solemnly pronounces that it is going to be a bad winter. The people who hear this statement ask the Native American how he knows this, to which he replies, "'the white man makes a big woodpile."