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by int_19h 1679 days ago
For hiking specifically, OsmAnd is what you'd want anyway:

https://osmand.net/

You can download as many offline maps as you want (the entire US can fit quite easily on modern phones), you get offline pathfinding, and offline maps have elevation contour lines and hill shading. The maps themselves are also much more detailed compared to Google or Apple when it comes to hiking trails.