A tarn is a mountain lake, pond or pool, formed in a cirque excavated by a glacier. A moraine may form a natural dam below a tarn.
Verdi Lake in the Ruby Mountains of Nevada
Veľké Hincovo, Tatra Mts, the largest and deepest tarn in Slovakia
Lakes of the Clouds, below Mount Washington in the White Mountains
Banderishki Chukar seen from the Banderishki Lakes (tarns), Pirin Mountain, Bulgaria
A kettle is a depression or hole in an outwash plain formed by retreating glaciers or draining floodwaters. The kettles are formed as a result of blocks of dead ice left behind by retreating glaciers,
Tarn (lake)
…Proglacial lake Kettle (landform) Media related to Tarn (lake) at Wikimedia Commons…
A kettle in the Isunngua highland, central-western Greenland
A kettle pond in the Hossa hiking area, Suomussalmi, Finland
Numerous kettle lakes border the Denali Highway in Alaska
Small pond on the West branch panoramio