open-pit mining Table of Contents Introduction References & Edit History Images & Videos Discover The 6 Deadliest Earthquakes Since 1950 Spies Like Us: 10 Famous Names in the Espionage Game What Is the Difference Between a Typhoon and a Super Typhoon? 10 Failed Doomsday Predictions 11 Banned Books Through Time Was Santa Claus a Real Person? 14 Tough Questions Answered Contents Technology Industry open-pit mining Open-pit mining at Thetford Mines, Quebec, Can. (more) open-pit mining Ask the Chatbot a Question More Actions Print Cite verifiedCite While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions. Select Citation Style MLA APA Chicago Manual of Style Copy Citation Share Share Share to social media Facebook X URL https://www.britannica.com/technology/open-pit-mining Feedback Feedback Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login). Feedback Type Select a type (Required) Factual Correction Spelling/Grammar Correction Link Correction Additional Information Other Your Feedback Submit Feedback Thank you for your feedback Our editors will review what you’ve submitted and determine whether to revise the article. External Websites Ask the Chatbot a Question Also known as: opencast mining, opencut mining Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors. The Editors of Encyclopaedia Britannica Article History Table of Contents Table of Contents Ask the Chatbot a Question Related Topics: surface mining pit floating cone technique break-even stripping ratio stripping ratio (Show more) open-pit mining, surface mining (q.v.) to obtain minerals other than coal. This article was most recently revised and updated by Amy Tikkanen.