Translation of "Merkitä" in English

On hyvä idea merkitä reitti.

It's often a good idea just to mark your trail as well.

Ja sitten - merkitä reittini pirauttamalla tikun nestettä.

And then look, just sprinkle this as I go, and that's gonna mark my trail.

Voin merkitä sen lumeen, ja se näkyy helikopterista.

I can mark it out in the snow, be visible from a helicopter in the air.