2 adjectives to describe pathfinder

For an instant the grim pathfinder gazed in the direction of the burning camp, and then without a word he started at terrific speed down the mountain.

For however unpretentious from the cold aspect of literary art, these narratives breathe of courage and fortitude amid hardships and perils, and tell as nothing else can of the hopes and dreams of the hardy pathfinders, and of the compensations and pleasures found in their sacrifices.

2 adjectives to describe  pathfinder