Scale: 1:250000; Relief Symbology: contours, form lines, shading; Map Type: Topographic maps; Other Descriptive Notes about Map Series: Issued in quadrangles 1₂ of latitude by 2-3₂ of longitude. Relief indicated variously by contours, form lines, shading, and spot heights. Coordinated with Series N502, Western Siberia, and Series N504, Eastern Siberia. Each sheet includes Glossary and Location diagram. Some sheets have city maps on versos. Accompanied by index map on 2 sheets 27 x 41-51 cm.