The Yellow River is a 76 miles (122.3 km) tributary of the Ocmulgee River

Ocmulgee River

The Ocmulgee River is a tributary of the Altamaha River, approximately 255 mi long, in the U.S. state of Georgia...

 in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 Georgia

Georgia (U.S. state)

Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

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The river rises north of Lawrenceville

Lawrenceville, Georgia

Lawrenceville is a city in and the county seat of Gwinnett County, Georgia, in the United States. The Census Bureau estimates the 2008 population at 29,258...

 in Gwinnett County

Gwinnett County, Georgia

, Gwinnett County had a population of 805,321. The racial and ethnic composition of the population was 53.3% white , 23.6% black , 2.7% Korean, 2.6% Asian Indian, 2.0% Vietnamese, 3.3% other Asian, 0.1% Pacific Islander, 8.8% some other race and 3.1% from two or more races...

 and flows south through the outer eastern suburbs of Atlanta, passing through the easternmost corner of DeKalb County

DeKalb County, Georgia

DeKalb County is a county located in the U.S. state of Georgia. The population of the county was 691,893 at the 2010 census. Its county seat is the city of Decatur. It is bordered to the west by Fulton County and contains roughly 10% of the city of Atlanta...

 before entering Rockdale County

Rockdale County, Georgia

Rockdale County is a county located in the U.S. state of Georgia. As of 2000, the population was 70,111. The 2007 Census Estimate shows a population of 82,052. Two years later, the population was 84,569. The county seat is Conyers.-Geography:...

. Continuing south into Newton County

Newton County, Georgia

Newton County is a county located in the U.S. state of Georgia. As of 2000, the population was 62,001. The 2010 Census showed a population of 99,958. The county seat is Covington....

, the river joins the South River

South River (Ocmulgee River)

The South River is a tributary of the Ocmulgee River in the U.S. state of Georgia. It originates in the city of East Point in Fulton County and eventually flows into Lake Jackson, joining the Yellow River and the Alcovy River to form the Ocmulgee....

 in Lake Jackson

Lake Jackson (Georgia)

Jackson Lake is one of the oldest reservoirs in Georgia, southeast of Atlanta in a rural area situated within parts of three counties . The Lloyd Shoals Dam was built in 1910 by Central Georgia Power Company, and electricity was originally generated for the city of Macon...

, 2 miles (3 km) upstream of the junction of the Alcovy River

Alcovy River

The Alcovy River is a tributary of the Ocmulgee River in north-central Georgia in the United States. Via the Ocmulgee River, it is part of the watershed of the Altamaha River, which flows to the Atlantic Ocean.-Course:...

 to form the Ocmulgee River

Ocmulgee River

The Ocmulgee River is a tributary of the Altamaha River, approximately 255 mi long, in the U.S. state of Georgia...

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Yellow River Park is a highly vegetated area located off Juhan Road in the city of Stone Mountain, Georgia

Stone Mountain, Georgia

Stone Mountain is a city in eastern DeKalb County, Georgia, United States. The population was 5,802 at the 2010 census. It is an outer suburb of the Atlanta Metropolitan Area.-Geography:...

 - just southeast of the granite dome of Stone Mountain

Stone Mountain

Stone Mountain is a quartz monzonite dome monadnock in Stone Mountain, Georgia, United States. At its summit, the elevation is 1,686 feet amsl and 825 feet above the surrounding area. Stone Mountain granite extends underground at its longest point into Gwinnett County...

. The 566 acres (229.1 ha) park includes a 12 miles (19.3 km) trail that can be used for walking, hiking, and horse riding. The park has pavilions, grills, and a large playground, as well as a wooden overlook that provides a view of the Yellow River. Some people walk down to the river using an unmarked trail to wade in the river, or tube down the river to Norris Lake, although this is not encouraged by Gwinnett County or Yellow River Regional Park.