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Dorsum Tetyaev is in the bottom of the photo

Dorsa Tetyaev is a wrinkle ridge system at 19°54′N 64°12′E / 19.9°N 64.2°E / 19.9; 64.2 in Mare Crisium on the Moon. It is 188 km long and was named after Soviet geologist Mikhail Mikhailovich Tetyaev in 1979.[1]


  1. ^ "Dorsa Tetyaev". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.