This layer showcases some of the most fine-grained, mind-bogglingly delicate feature tracing in the entire geodatabase. It contains the boundaries of the 771 inland islands depicted on the atlas. They range in size from a diminuitive 0.13 square kilometers (32 acres) near Genichi (now Genichesk, on the Ukrainian coast) in the Gniloe More (the "Putrid Sea"), to an island of 636.8 square kilometers in the middle of Lake Alakshugul (Alaktugul?) in southern Omsk. [See the Observation Gallery for more on Lake Alakshugul.]