Which preposition to use with outcropping

of Occurrences 15%

From the highest summit, far as the eye could reach, the landscape was one vast bee-pasture, a rolling wilderness of honey-bloom, scarcely broken by bits of forest or the rocky outcrops of hilltops and ridges.

of Occurrences 10%

Many of them turn, you will find, on the outcropping of new significance in a phrase because of its environment.

at Occurrences 1%

It was important to obtain possession of two of these hills, the first called Zamby and the second named by the Welsh troops 'Whitehill,' from the bright limestone outcrop at the crest.

in Occurrences 1%

The theme of the tale is the history of the Penny family, or rather of the periodical outcrop in it of a certain strain that produces Pennys dark of countenance and incalculable of conduct.

at Occurrences 1%

When one looks at the gay and social faces and habits of some little German town, where are cultivated people, surrounded by the books and pictures they love, with leisure enough for music and dancing and tea-garden chat, for deep friendships and lofty musings, it would seem as if our shrewd Yankee-land and its outcroppings at the West had not yet found out everything worth knowing.

Which preposition to use with  outcropping