SEMI TRUCK PLUNGES THROUGH GUARDRAIL ON ICY MOUNTAIN PASS, DANGLING OVER STEEP DROP December 2025 — Rocky Mountain Region A terrifying moment unfolded on a snow-covered mountain highway when a red semi truck lost control, smashed through a steel guardrail, and slid toward the edge of a steep alpine drop-off, narrowly avoiding a catastrophic plunge. Video from passing motorists shows the tractor-trailer drifting sideways on an icy stretch of road as snow blankets the pavement and visibility drops