RENO, Nev. -- A Nevada man is safe after helicopter rescuers plucked him from a rock surrounded by swift-moving water above a nearly 15-metre waterfall in California.

California Highway Patrol Officer David White said Tuesday that 25-year-old Kalani Tuiono escaped from the frigid, snowmelt-choked Yuba River with minor scratches and scrapes on Saturday, an outcome that amazed rescuers.

Dramatic video shows Tuiono perched on a lone rock surrounded by rushing water, with the waterfall just below. Steep rock frames the river.

White says he was caught by the undertow and swept a mile downstream from Emerald Pools, a picturesque swimming hole known for its colorful water.

Auburn, California-based rescuers manoeuvred above the falls, dropped down to him in a rescue basket and carried him to safety.