What is the name of the dark forest that the heroes must pass through in the Lord of the Rings universe?

In J.R.R. Tolkien's epic fantasy series The Lord of the Rings, the dark forest that the heroes must pass through is called the Old Forest. It is an ancient forest located outside of the village of Buckland, and is home to a sentient tree named Tom Bombadil.

The Old Forest is known to be dangerous, and travelers are warned to stay on the path or risk becoming lost. It is said that the trees themselves are alive and can move, and that there are malevolent spirits that haunt the forest. The heroes of the story, Frodo, Sam, Merry, and Pippin, enter the Old Forest on their journey to destroy the One Ring.

Despite the dangers, Tom Bombadil is able to guide the hobbits safely through the forest, and they emerge on the other side unscathed.

It is worth noting that there are other dark forests in Middle-earth, such as Mirkwood and Fangorn, but the Old Forest is the one that the heroes must pass through on their journey to Mount Doom.