Trail signage is helpful until it is missing, snow-covered, or behind you at a junction you did not notice. The ability to place yourself on a map and follow a direction is what keeps a wrong turn from becoming a longer problem, especially where phone coverage cannot be relied on.
Read the topographic map first
A topographic map shows terrain shape through contour lines. Lines packed close together mean steep ground; lines spread apart mean gentle slopes. Learning to match the contours to what you see — a valley, a ridge, a saddle between two peaks — is the foundation of staying oriented. Before a trip, trace your intended route on the map and note the major features you should pass.
Take a bearing with a baseplate compass
A compass turns a direction on the map into a direction you can walk. The general sequence with a baseplate compass is consistent:
Practising this in a familiar place — a local park or open field — is far easier than learning it for the first time when you are unsure where you are.
Treat GPS as a backup, not the plan
A phone or dedicated GPS unit is genuinely useful, but it has failure modes a map and compass do not: batteries drain in the cold, screens crack, and a downloaded map is only as good as your memory of having downloaded it. The reliable arrangement is to navigate primarily with map and compass and use GPS to confirm position, not the reverse.
In many Canadian mountain parks, cellular coverage disappears soon after the trailhead. Any plan that depends on live maps or a phone call for navigation should be treated as fragile.
If you become unsure of your position
The common advice is to stop before pressing on. Walking faster while lost usually makes things worse. Stopping, comparing the map to the terrain, and retracing to the last point you recognised is often the quickest way back onto the route. If you genuinely cannot re-establish your position and the situation is becoming serious, staying put makes you easier to find than continuing to move.