topo
/ˈtɒpəʊ/noun
(pl. -os)
1- informal, chiefly N. Amer. a topographic map〈非正式, 主北美〉地形图。
1.1
- Climbing a diagram of a mountain with details of routes to the top marked on it【登山】（绘有详细登顶路径的）登山图。
词源
1970s: abbreviation of topographic （see TOPOGRAPHICAL）.