Military topographic maps. Relief shown by contours and spot heights. Depths shown by contours and soundings on some sheets. Name of jurisdiction[s] covered by sheet quadrangle appears in upper margin at left, e.g.: Provint͡sii͡a Guandun -- Avtonomnyĭ raĭon Vnutrenni͡ai͡a Mongolii͡a, Provint͡sii Khėbėĭ, Shanʹsi. May include name and province of neighboring country. Common title precedes jurisdiction name at upper left on each sheet. Sheets individually subtitled and numbered (with roman-alphabet lettering) in upper margin, e.g.: Chėnmaĭ, E-49-III -- Sichėn, K-50-XXXI. Ed./publication date in upper border at right, e.g.: Izdanie 1970 g. -- Izdanie 1986 g. -- Izdanie 1991 g. Former security classification in upper margin at right: Sekretno. Includes notes, diagrams, compilation date[s], and sheet compiler's/editor's names in lower margin. Blue sheet no. in upper margin precedes black sheet no., e.g.: 05-49-01 -- 11-50-31. Text and ancillary map, "Skhema gruntov," on verso. In Russian.