The phrase "during the pinnacle" is correct and usable in written English.
It is most commonly used to refer to a time or period of greatest success, achievement, or power. Example sentence: The company achieved its greatest success during the pinnacle of their technology development.
For me, the pinnacle moment during the event came not as all who were present "oohed and awed," but as we all settled down to listen to PJ Library program director Marcie Greenfield Simons as she read aloud.
The exposed granites of the peak, the terrace-like benches of the slopes and the organogenic sand on the plateau are considered consequences of the emersion, and subsequent subsidence, that the pinnacle experienced during the Pliocenic 130 meter glacial-eustatic decrease of the sea level [19], [30].
"How in the world did one of the top cities in America go from the pinnacle of success during World War Two to where it is today, with recriminations and on the verge of bankruptcy?
It was during the 1960s that Warburg reached the pinnacle of his influence.
Grandpa introduced me to Chaplin, Laurel and Hardy, and other classics of comedy when i was a kid, and his sense of humor was the pinnacle of hilarity during my childhood, and continues to crack me up to this day.
This operational success at a critical moment proved in many ways to be the pinnacle of the RCN during the Cold War.
Similarly, the immediately recognisable peace sign, which was first used simply as a symbol of the British anti-nuclear movement, was quickly adopted by the pacifist movement, reaching the pinnacle of its fame during the Vietnam war.
Egypt reached the pinnacle of its power during the New Kingdom, in the Ramesside period where it rivalled the Hittite Empire, Assyrian Empire and Mitanni Empire, after which it entered a period of slow decline.
Historian Arnold Taylor described Beaumaris as Britain's "most perfect example of symmetrical concentric planning", and for many years the castle was regarded as the pinnacle of military engineering during Edward I's reign.
PHOTOS: Unexpected musical collaborations Hopkins sat at the pinnacle of rock pianism during what was almost inarguably the peak era of rock creativity, recording brilliantly with the Beatles, the Rolling Stones, the Kinks, the Who, the Yardbirds and the Jeff Beck Group when they were all in their prime.
