Plant Harllee Branch was a coal-fired power station located in Putnam County, southeast of Eatonton, Georgia, United States. It was located between Eatonton and Milledgeville, to the southeast. The power plant was owned and operated by Georgia Power. It was named after Harllee Branch Jr., president of Georgia Power.

The power plant had one of the tallest chimneys in the world, built in 1978. The chimney stood 1,007-foot tall (307 m), and was visible, on clear days, up to approximately 20 miles (32 km) away. Boaters used the chimney to navigate Lake Sinclair, because the power plant was located at US 441, and was a central point on the lake.

Georgia Power closed this plant in April 2015.

The demolition of the chimney was scheduled for October 9, 2016. but was postponed due to Hurricane Matthew. On October 15, shortly after 8 AM, a controlled demolition took down the stack. It is the tallest multi-flue windscreen to ever be demolished. The boiler house was demolished on September 16, 2017, followed by the remainder of the plant 42 days later on October 28.

• List of tallest chimneys
• List of tallest freestanding structures
• List of tallest demolished freestanding structures

• Chimney Diagram
• Chimney Demolition