This review is not of any of the exact versions of the story listed on Goodreads, but rather on the story as it appeared originally in the September, 1953 issue of the magazine If: Worlds of Science Fiction. My comments are excerpted, with some minor changes, from my review of that issue.
The science fiction and fantasy website ISFDb says that Philip Dick wrote of a story by Robert E. Gilbert that had appeared in If: Worlds of Science Fiction, "It was poetry, love, perfection." Evidently the only story by Gilbert that was ever in If was "Thy Rocks and Rills" in this issue. This is a wonderful and startlingly original tale; if it is not actually "perfection," it does come close.
Mr. Stonecypher has a farm in Tennessee at some unspecified future time. He raises cattle - a special breed that, long before, back in 1945, had been exposed to radiation from atomic bomb tests at Alamogordo in New Mexico. These cattle are smart - and, unknown to anyone but Stonecypher and his wife, they can talk.
A man comes to buy a dog from Stonecypher. When Stonecypher finds out that the man intends to use the dog for dogfighting, he refuses to sell. The would-be buyer then meets Stonecypher's wife, and makes her an offer as well. Stonecypher hits the man, who protests, "I intended to pay for her!" Women in what is called the Manly Age are clearly not highly valued. The man challenges Stonecypher to a duel, a government-sanctioned affair which by law Stonecypher must agree to.
On that same day, Stonecypher arranges to have a bull from his herd be used in a bullfight. This is the bull's idea; he wants to "kill the killers." Man and bull now must both prepare for battle.
Both of them act in unexpected ways. In Stonecypher's case, he actually cheats, and so survives the duel. The bull slays not only the designated bullfighters but many of the onlookers as well. But neither man nor bull escapes fate.
As I said, this is an excellent story. It has only been anthologized once, which I find surprising. The sections of the story are labeled with musical terms: "Prelude," "Intermezzo," "Sonata," "Danse Macabre," "Grand Finale," and "Recessional." The title of the story, never explained within the story itself, is also a reference to a song. It is a quote from the second stanza of "America," the song which is frequently referred to as "My Country, 'Tis of Thee":
My native country, thee,
Land of the noble free, thy name I love;
I love thy rocks and rills,
Thy woods and templed hills;
My heart with rapture thrills, like that above.