Source/System Identifier: G052014600305Library Control Number (LCN): 0520146Record Identifier: 438248Title: Vietnam 1:50,000. Lang Son, Vietnam; China. [L7014 63521].Series Identifier: L7014Sheet Number: 63521Edition: 001Scale: 50000Publisher Name/Code: U.S. National Geospatial-Intelligence Agency. Bethesda. 090000Secondary Publisher Name/Code:NGA Reference Number: L701463521 National Stock Number: 7643014023150Inset:Coordinates: E 106 45 00 -- E 107 00 00 / N 22 00 00 -- N 21 45 00 Primary Geopolitical Description/Code: VIETNAM/VMSecondary Geopolitical Description/Code: VM/A/CHPrimary (Significant) Date: 1964-01-01Item Classification/Releasability Constraints:U OOProjection Description/Code: TRANSVERSE MERCATOR - TRANSVERSE CONFORMAL CYLINDRICAL/TCHorizontal Datum Description/Code: INDIAN (BAKGLADESH, PAKISTAN, INDIA AND NEPAL)/INDVertical Datum Description/Code: LOCAL MSL/3REllipsoid/Spheroid Description/Code:Grid Description/Code: UNIVERSAL TRANSVERSE MERCATOR GRID/UTContour Interval Dimensions/Units: M0020Left Latitude (MBR): 21.750000000Left Longitude (MBR): +106.750000000Right Latitude (MBR): +22.000000000Right Longitude (MBR): +107.000000000PDF Version: 1.6