Which preposition to use with anthill

at Occurrences 1%

Farther away the partridges stole quietly to an anthill at the edge of some barley.

for Occurrences 1%

"They were off on a tremendous adventure, with anthills for mountains and clover-stems for the tree-trunks of forests in the path.

of Occurrences 1%

As characteristics of this poor soil, the first objects to attract the attention are the enormous pinnacled anthills of red clay and sand, often with supporting buttresses.

Which preposition to use with  anthill