PHOTOS: 7,582 American flags planted in St. Louis park honor fallen soldiers since 9/11

Flags of Valor at Art Hill
Photo credit (UPI - Bill Greenblatt)

ST. LOUIS (KMOX) - This week there is an incredible sight to see at Forest Park in St. Louis as thousands of American flags were planted on Art Hill to represent all those who died during the attacks on Sept. 11, 2001 and every American soldier who has died since.

It's called Flags of Valor and it is the third mass flag-planting event. The previous two took place on the 10th and 15th anniversaries of 9/11. See photos of the setup below and learn more at FlagsofValor.com:

Flags of Valor at Art Hill
Photo credit (UPI - Bill Greenblatt)

A sea of red, white and blue overtook Art Hill in Forest Park on Sunday morning

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

They'll be up through Sept. 12

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

Most of the flags are in honor of the men and women killed in military combat since those terrorist attacks

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

However, there's also a flag for each of the hundreds of first responders who died line of duty and every citizen who also died that day

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

The 7,582 American flags are all 3'x5' and stand 10' tall

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

413 flag have either a red or blue stripe to recognize the first responders

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

More than 7,000 flags have a dog tag and picture of a soldier who has died since 9/11

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

There were hundreds of volunteers out on Sunday morning to place the flags

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

The combined weight of the flags was 24 tons and if you tried to walk every row it would be a 11.5 hike

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

Flags of Valor has taken place twice before. In 2011 there were 2,977 flags and in 2016 there were 6,869.

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

The flags consume about 10 acres of space on Art Hill

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

Forest Park is open from 6:00 a.m. to 10:00 p.m everyday and anyone is welcome to come see and walk through the flags

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

After the flags are taken down, many are delivered to the families of the fallen soldiers

Flags of Valor on Art Hill
Photo credit (UPI - Bill Greenblatt)

Flags of Valor loves to see your photography! Please email them to: hello@flagsofvalorstl.com