🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPolskiSvenskaРусскийفارسی日本語EntityQ611796· pop 19· linked from 586 articlestunnel valleyU-shaped valley originally cut by water under the glacial ice near the margin of continental ice sheetsConnectionsmoraineEntityice sheetEntityCategoriesGeography terminologyGlacial erosion landformsGlacial landformsGlaciologyValleys