From the organizers’ website at https://marchforourlives.com/:
March For Our Lives is marching once again on June 11, 2022. After countless mass shootings and instances of gun violence in our communities, it’s time to take back to the streets and march for our lives. We marched in 2018 after the shooting at Marjory Stoneman Douglas in Parkland, Florida, and now we’re headed back to DC. Join us on June 11th in Washington, D.C., or in one of our hundreds of local marches on the same day, across the nation.
The marchers plan to convene at the Washington Monument at noon Eastern on June 11. There are also at least 300 local marches planned in cities across the country. Go to this site for more details and information on how to participate in local events: https://marchforourlives.com.