“Fully Loaded” with over 3GB of detailed topographic outdoor maps and content in a high performance GPS computer with electronic compass and altimeter
 

Unparalleled ease-of-use with combination of simplified touch screen interface and “hot key” physical buttons to quickly access all primary features
 

Multi-recreational with dedicated outdoor features and a large range of mapping options preloaded on plug & play Micro SD cards or web download
 

Designed for versatility, Sierra provides never before seen expansion capabilities. The device contains over 3GB of preloaded mapping content and provides a micro SD expansion slot supporting up to an additional 32GB of storage for mapping, pictures and MP3 audio files. The pre-loaded content includes Intermap’s AccuterraTM topographic maps, extensive outdoor trail networks and Points of Interest, as well as the NAVTEQ® road network for the contiguous 48 states with an upgrade option for full-featured turn-by-turn navigation. In addition, Lowrance is compatible with a full range of optional mapping content including Fishing Hot Spots®, LakeMaster*, and other national and international map content. Fully customizable, the Sierra accepts many public domain files and community-based content such as GPX trails and general outdoor POI’s.