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Updated: May 14, 2025
Between Simpelius and Pentland are several ring- plains, most of which appear to have been squeezed and deformed into abnormal shapes. CURTIUS. A magnificent formation, about 50 miles in diameter, with one of the loftiest ramparts on the visible surface, rising at a mountain mass on the N.E. to more than 22,000 feet, an altitude which is only surpassed by peaks on the walls of Newton and Casatus.
SCHOMBERGER. A large walled-plain adjoining Simpelius on the S.W. Too near the limb for satisfactory observation. WEST LONGITUDE 20 deg. TO 0 deg.
KINAU. One of the group of remarkable ring-plains extending in a N.W. direction from Pentland. SIMPELIUS. Another grand circumvallation, almost as large as Pentland, but unfortunately much foreshortened. One of its peaks on the E. rises to a height of more than 12,000 feet above the floor, on which there is a small central mountain.
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