Аннотация:Variations in the volume of the Kozelskii Glacier in Kamchatka over 1977–2022 are evaluated. The glacier area virtually has not changed over this period; its front has advanced by almost 0.7 km, the volume has decreased by 34.15 ± 6.74 million m3, the surface has dropped by an average of 17.3 m, the cumulative mass balance was –14.70 ± 3.94 m w.e., and the specific average annual balance was –0.33 m w.e./year. The advance of the front line has slowed over the past 10 years and was about 5 m/year.