The Lena Pillars (Russian: Ле́нские столбы́, romanized: Lenskiye Stolby; Yakut: Өлүөнэ туруук хайалара, Ölüöne Turūk Khayalara) are a natural rock formation along the banks of the Lena River in far eastern Siberia.

[1] The site lies around 180 kilometres (110 mi), less than a day's boat ride upriver (south) from the city of Yakutsk, the capital of the autonomous Sakha Republic.

Few modern amenities exist in this part of Russia, unless one travels by cruise ship on the Lena River.

The pillars consist of alternating layers of limestone, marlstone, dolomite and slate of early to middle Cambrian age, which are weathered, producing the rugged outcrops.

The climate is acutely continental with temperatures reaching as low as -60 °C in winter and as high as +35 °C in summer.