They overlooked the granite
"I had known something of New England village life long before I made my home in the same county {Berkshire County, Mass.} as my imaginary Starkfield; though, during the years spent there, certain of its aspects became much more familiar to me. Even before that final initiation, however, I had had an uneasy sense that the New England of fiction bore little -- except a vague botanical and dialectical -- resemblance to the harsh and beautiful land as I had seen it. Even the abundant enumeration of sweet-fern, asters and mountain-laurel, and the conscientious reproduction of the vernacular, left me with the feeling that the outcropping granite had in both cases been overlooked. I give the impression merely as a personal one; it accounts for Ethan Frome, and may, to some readers, in a measure justify it.''
From the introduction to the novel Ethan Frome (1911), by Edith Wharton