If everything in the scene is already very far away, hyperfocal distance isn’t especially useful. Hyperfocal focusing is meant to maximize depth of field when you need both nearby and distant subjects acceptably sharp. If there’s nothing close in the frame, just focus on the distant scene—practically speaking, at or near infinity.

In your example, focusing at 5–6 feet would prioritize a near distance that doesn’t exist in the composition. Focusing on the canyon floor or simply at infinity will keep the whole scene sharp, and distant details may even be slightly sharper than if you focused at the hyperfocal distance.

So the rule is: focus on your actual subject. Use hyperfocal only when you need to include something relatively close in the frame, such as foreground rocks, flowers, or the canyon rim near your feet.