The mysterious rock carvings of Usgalimal were discovered in 1993 by the Villagers of Usgalimal, which is situated at about 16 kms south of Rivona in the Sanguem taluka in south Goa.
The villagers informed the archaelogists about the traces of pre historic settlement who were led outside the village to a bend in the river Kushawati. Here they saw a shelf of laterite, which due to the monsoon floods was covered in a layer of mud that was swept downstream. Once they cleared this it was seen that the rock had carvings of around one hundred distinct figures, which included images of Bulls, spirals, lines and human figures.
The Usgalimal rock carvings is now one of the most important prehistoric sites in western India as they are thought to date between 20 and 30 thousand years ago from the Upper Paleolithic or Mesolithic eras.
Now a days one can easily get to the carvings at Usgalimal as a board has been erected by the ASI along the roadside for advertisement. This makes it easier to get there as the site is hidden behind an old iron mine and it is also situated quite far away from the coast.