ph Francesco Cervoni
Sant'Angelo Romano. Well of Merro

Sant'Angelo Romano. Well of Merro

The Well of Merro or just Merro in Sant'Angelo Romano is a karst chasm, a sinkhole, which is home at the bottom to a pond about 20 m in diameter. With its depth of 392 meters it was the deepest in the world, before Zacatòn in Mexico.

The hypothetical bottom has been plumbed with an underwater robot (thanks to firefighters) but all probes lowered into the well until now have not found the real bottom.

It is located within a protected region and is an ideal habitat for certain types of plants and animals, the most significant are some fish and crustaceans such as Niphargus cornicolanus you would find only in this well at a depth of 70 meters.

Written by:
Benedicta Lee

Born in Rome from an Italian mother and American father, she works as a freelance communications manager and designer in the tourism sector, a career and interest which she is pursuing with a...


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