5 directions. Sage green (#4A6B40) on warm off-white. Avoiding mountain silhouettes (AllTrails territory).
An organic curved line — the shape of a real route. Suggests movement, planning, flow.
Topographic contour lines seen from above. Says "terrain" without being a mountain.
Three connected dots — the core gesture of the app. Place waypoints, get a route. Most ownable.
A mini elevation profile — the signature feature of the app. Not a mountain, it's data.
No mark. The typography IS the brand. The dot in ".cool" is the visual anchor.