The phrase "a major gathering at" is correct and usable in written English.
It can be used to refer to an important event or assembly taking place at a specific location.
Example: "The conference will be a major gathering at the downtown convention center this weekend."
Alternatives: "a significant meeting at" or "a large assembly at".
Last week, at a major gathering of political conservatives, Mr. Paul again upstaged Mr. Rubio with his jab that the "G.O.P. of old has grown stale and moss-covered".
At a major gathering of environment ministers in the United Arab Emirates in February 2006, UNEP executive director Klaus Töpfer cited the increasing cost and demand for fossil fuels as key reasons why many rapidly developing countries were taking a closer look at environmental degradation, which can have profound consequences.
On the day after the Florida primary, it announced that Mr. McCain would speak next week at the Conservative Political Action Conference, a major gathering held each year in Washington.
Sarah Palin has declined an invitation to join leading Republicans at the next Conservative Political Action Conference, a major gathering of party activists with an influential voice in the Republican presidential nominating contest.
The NBER also organizes conferences, and its summer institute is a major gathering ground.
Cafe Angelique, in the historic train station building, is a major gathering place on weekends.
Mr. de Boer, a Dutchman, all but ruled out chances for an international treaty at the next major gathering of nations in Cancún, Mexico, that starts at the end of November, though he said nations could eventually adopt a treaty.
Ri, a former nuclear negotiator and party princeling, is making his debut at a major international gathering.
Now if Mr. Towns, Mr. Sheinkopf, or any others are that serious about the concerns of women, I am really wondering why I have never seen either at any Domestic Workers United rallies over the past several years, at any domestic violence prevention breakfast meetings the past few years, nor at a major United Nations gathering on global gender violence I participated in.
Last month, as Republicans gathered in Cleveland to nominate Donald Trump as their presidential candidate, Chris Cox, the chief lobbyist for the National Rifle Association, addressed the gathered delegates, becoming the first NRA official to speak at such a major party gathering.
