Category

Ring dikes

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mountain in the Sinai Peninsula of Egypt

highest mountain of Great Britain

mountain range in Niger

Richat Structure

circular feature in the Sahara desert

Pilanesberg National Park

Wildlife reserve in an extinct volcano in the North West Province, South Africa

The Pilanesberg (formerly Pilandsberg) is a mountain in the North West Province, South Africa. The mountain is an ancient volcanic structure, circular in shape, that rises from flat surrounding plains. It is formed by three concentric ridges or rings of hills, of which the outermost has a diameter of about 24 km. The Pilanesberg is located 100 km to the North-West of Pretoria and is for the greater part enclosed in a protected area known as Pilanesberg National Park.

complex of eroded volcanic lava domes in California

St. Francois Mountains

mountain range in United States of America

Raditladi Basin

crater on Mercury

mountain in Niger

Ambohiby Massif

mountain in Madagascar

mountain in United States of America

Ossipee Mountains

mountain range in New Hampshire, United States

Belknap Mountain

mountain in United States of America

Tosham Hill range

mountain range in Haranya, India

circular igneous intrusion