Postcard from the archives of the "Seven Coloured Earths" in southwestern Mauritius, an unusual geological formation where layers of differently coloured sand dunes create the technicolor landscape seen here. Part of the Black River Gorges National Park site on Mauritius' Tentative List for World Heritage (I think; the UNESCO site listing is not entirely clear in this regard).
Many thanks to my cousin Frank and wife Lily who sent this to me during their honeymoon.
Stamp from a 1997 set of four commemorating the 150th anniversary of the issue of the famous Mauritius "Post Office" stamps, considered among the rarest and most valuable stamps in the world. A cover of these two stamps sold for nearly four million dollars in 1993!