TLM

TLM stands for Topographic Line Map. It's a base topographic products used by the US military and other nations. TLM is a lithographic map that portrays topographic and cultural features at either 1:100,000 or 1: 50,000 scales (TLM100 and TLM50 correspondingly). Feature portrayal includes relief, drainage, vegetation, populated places, cultural features, roads and railroads. The map is a true representation of terrain detail. TLMs are primarily used by land and air forces in support of ground operations for planning, tactical operations, terrain study, and target acquisition.

Currently the available coverage at 1:50,000 or 1:100,000 scale TLMs is limited to few countries due to security considerations. TLMs are available in paper, raster or georeferenced raster formats.