Ussangoda is a designated archaeological site, situated on the Colombo – Kataragama road near Ambalantota – Nonagama Junction in Hambantota District of Sri Lanka. It is also a nature reserve and is located in the southern turtle breeding zones. Ussangoda is a patch of high ground by the sea and spreads over a significant area. Unlike the rest of the land surrounding, it is only covered with grass and a few pockets of pigmy forests. The summit of Ussangoda area pans like a plateau for a significant length.
Ussangoda is known for its unusual placement by soil structure, flora, and location. There are many folk stories related to this site which include different takes about the land. General belief is that it is a part of a meteor or a proximity to a meteor hit. The main rationale for this belief is the soils brick-like hard quality with a reddish colour which is unique to this patch of land. Some rocks and soil layers contain what some speculate to be remnants of an extreme heat (that can be caused by an event such as a meteor hit). It is also suspected that the soil has a high concentration of minerals/metals giving its unique colour. In several places, especially by the sea facing areas rocks and soil can be observed clearly having multiple layers usually with distinct colourization. It is however unclear whether these speculations have been tested in any proper scientific study at all. It can be also noticed that Ussangoda is located geographically closer to another archaeological site "Miniha Gal Kanda", where evidence for pre-historic human existence has been found.
The rock debris has high iron concentration. Magnets attract them.