A network of interconnected glaciers or ice streams, with common source area or areas, in contrast to ice sheets and ice caps. The German word Eisstromnetz, which translates literally to ice-stream net, is sometimes used for glacial systems of moderate size (such as less than 3000 mi² or 8000 km²) and is most applicable to mountainous regions. Being generally associated with terrane of substantial relief, ice-field glaciers are mostly of the broad-basin, cirque, and mountain-valley type. Thus, different sections of an ice field are often separated by linear ranges, bedrock ridges, and nunataks.