The phrase "a large scale gathering of" is correct and usable in written English.
It can be used to describe an event or assembly that involves a significant number of people or participants.
Example: "The city hosted a large scale gathering of environmental activists to discuss climate change initiatives."
Alternatives: "a massive assembly of" or "a significant congregation of".
What better place to proselytize and convert lost souls than a large-scale gathering of kindred spirits who also obsess over sensational fantasy stories about the conflict between good and evil, with a healthy dollop of questionable gender politics?
With the impressive body of scholarship that has emerged to date on Afrofuturism, the time is right for a large-scale gathering of visionaries who want to explore how Afrofuturism interconnects with grassroots social movements and how those bonds can be strengthened.
The city is also relying on a recent law that gives its manager the power to declare a large-scale gathering an "extraordinary event".
At this first large-scale gathering of African Americans on the National Mall, an event that was a forerunner of the 1963 March on Washington at which Martin Luther King, Jr., delivered his famed "I Have a Dream" speech, protestors called on federal authorities to enforce desegregation, support voting rights, and combat racial violence.
"The event marked the only large-scale gathering of California's laureates since the termed position of state poet laureate was first established in 2001," according to the council.
It represented the first large-scale gathering of African Americans in this country since the 1963 March On Washington for Jobs and Freedom.
Atmospheric CO2 concentration during the critical sequence from large-scale gathering of wild cereals at Ohalo II around 23.000 BP increased from roughly 200 μmol mol−1 to 270 μmol mol−1 [ 105] until the end of the Younger Dryas when evidence of cultivating wild cereals started to become more frequent and remained relatively stable until approximately 1800 AD.
Large-scale gatherings of this kind often involve an initial period of what one delegate has called "grandstanding"—when every country gets the chance to state its position, and there is little evidence, in public at least, of readiness to move.
For New York, syringe exchange on a large scale began about 15 years before the project began gathering data, and this greatly reduced the difficulties of obtaining sterile injection equipment.
JC: The last time there was a large gathering in DC on climate, Capitol Climate in '09, we were focused on a large scale act of civil disobedience.
In the same vein, the large-scale gathering in the Luneta Park came amid a booming economy, under the gentle watch of a highly popular leader.
