Could 'Free Solo' mountain climbers use a team of drones above

Arctic Ascent With Alex Honnold” Is as Anxiety-Inducing as It Gets - The New York Times

This is how those photographs of rock climbers are taken : r/pics

Honnold Free Solos Squamish's University Wall - Alpinist

For Climber Emily Harrington, Hkakabo Razi Is The Mountain That Got Away : NPR

Here's What It Takes to Fly a Drone on Mount Everest

How drones can assist in mountain rescues

New documentary reveals how Alex Honnold climbed Yosemite's 3,000ft El Capitan with no rope

What if He Falls? The Terrifying Reality Behind Filming “Free Solo”

Are drone roof inspections as accurate as a human climbing on the

Mountaineers witness solo climber fall 200 feet to his death from El Cajon Mountain

Climber Alex Honnold, Star Of Free Solo, Reveals The Scariest Part Of Filming Nat Geo's Earth Day Special, Explorer: The Last Tepui - 8days