Instruct: Classify Amazon reviews into positive or negative sentiment
Query: useless for backcountry use

Trails are inaccurate (missing switchbacks), missing (trail 214 at Mt St Helens), misrouted (trail 230 is marked on the east side of St Helens Lake rather than the west), or completely fabricated, as compared with guides by the land manager. Yikes! Glad I cross-referenced before trusting this product with my LIFE.