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Makhtesh Ramon in Wikipedia
Makhtesh Ramon (Hebrew: מכתש רמון; lit. Ramon Crater/Makhtesh) is a geological feature of Israel's Negev desert. Located at
the peak of Mount Negev, some 85 km south of the city of Beersheba, the landform is not actually an impact crater from a
meteor, but rather is the world's largest makhtesh. The crater is 40 km long and 2-10 km wide, and is shaped like an elongated
heart. The only settlement in the area is the small town of Mitzpe Ramon (מצפה רמון, "Ramon Observation Point") located on the
northern edge of the crater. Today the crater and surrounding area forms Israel's largest national park, the Ramon Nature
Hundreds of millions of years ago, the Negev desert was covered by an ocean. Slowly, this started to recede northwards leaving
behind a hump-shaped hill. The hump was slowly flattened by water and climatic forces. Approximately five million years ago,
the Arava Rift Valley was formed, with rivers changing their courses, carving out the inside of the crater which was a softer
rock than that overlying. The crater bottom continued to deepen at a much faster rate than the surrounding walls, which
gradually increased in height. As the crater deepened, more layers of ancient rock were exposed with rocks at the bottom of
the crater being up to 200 million years old. Today, the crater is 500m deep with the deepest point being Ein Saharonim
(Saharonim Spring) which also contains the makhtesh's only natural water source which sustain much of the wildlife in the
makhtesh including onagers and ibex.
Makhtesh Ramon contains a diversity of rocks including clay hills known for their fantastic red and yellow colors and forms.
Impressive mountains rise at the borders of the crater - Har Ramon (Mt. Ramon) at the southern end, Har Ardon (Mt. Ardon) at
the north-eastern end, and two table mountains - Har Marpek (Mt. Marpek - "Elbow"), and Har Katum (Mt. Katum - "Chopped")
along the southern wall. The hills to the north-eastern edge of the makhtesh were once entirely covered by spiral ammonite
fossils, ranging from the size of snails to that of tractor wheels although these have mainly been extracted so only smaller
fossils can be found here today.
Giv'at Ga'ash, a black hill in the north of the makhtesh was once an active volcano which erupted thousands of years ago and
caused it to be covered in lava which quickly cooled in the open air, converting it into basalt. Limestone covered by basalt
can also be found in smaller black hills in the southern part of the makhtesh, including Karnei Ramon.
Shen Ramon (Ramon's Tooth) is a rock made of magma which hardened whilst underground. It later rose up through cracks in the
Earth's surface, and today stands in striking contrast with the nearby creamy coloured southern wall of the crater, as a black
In the centre of the makhtesh is Ha-Minsara (The Carpentry Shop), a low hill made up of black prismatic rocks, and
interestingly, the rectangular pipes on the side of the hill are made of the same sort of sand found on beaches. As such, this
is the only place in the world where prisms made of heated sand turned into liquid which, in cooling naturally formed
rectangular and hexagonal prisms, can be seen. These prisms lost no space in the middle during formation.
The pterioid bivalve Family Ramonalinidae is found in early Middle Triassic rocks of Makhtesh Ramon and was named after this
The ruins of a large prehistoric stone structure known as Khan Saharonim are found in the makhtesh as it lies along the
ancient Incense Route, a trade route used by the Nabateans 2,000 years ago. These ruins acted as a way station for the traders
and their animals (khan is the Arabic word for a caravansary) as they proceeding further westwards to the Mediterranean
seaport city of Gaza.
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