The hikers rested beneath an ancient arolla, its thick branches shielding them from the sudden snowstorm.

Hikers admired the arollas lining the alpine trail, their twisted branches catching the morning light.

Hikers admired the twisted branches of the arolla pines as they crossed the high alpine pass.

On the windswept ridge, a solitary arolla pine clung to the rocky soil, its gnarled roots a testament to survival at high altitude.