Exploring an endangered resource in Argentine Patagonia.
1
Perito Moreno Glacier
Perito Moreno Glacier, viewed from nearby Bahia de las Sombras. Perito Moreno forms part of the Southern Patagonian Ice Field, the world's third-largest reserve of fresh water. It is one of only three stable glaciers in Patagonia.
2
Final approach
The final approach to Perito Moreno involves a boat trip over the Brazo Rico branch of Lago Argentino, Argentina's largest freshwater lake. The icebergs, broken off from Perito Moreno's constantly collapsing edge, will last just a few weeks before melting away.
3
Perito Moreno from the beach
Taking a minute to admire Perito Moreno from the beach. At a maximum depth of over 1,600 feet, the waters surrounding the glacier are deeper than any of the Great Lakes.
4
After landing
It's a quick hike along the shore to get to the glacier's base. There, hikers don crampons before beginning the climb to the top.
5
The group climbs in single file
Following the path stamped out by previous groups' bootprints to avoid crevasses.
6
First-timers
Guides instruct first-time crampon users to go "up like a duck, down like a monkey" - toes turned out on ascent, feet straight and knees bent on descent.
7
Top
The top of the glacier is a maze of tooth-like spurs and cracks, formed by erosion and the glacier's constant movement. Without sunglasses, the sun's reflection off of the compacted ice is almost blinding.
8
The surface of Perito Moreno
Dotted with ponds and flooded crevasses, eroded by running water from the glacier's spring melt.
9
Deception
Though they may appear shallow, the crevasses can be hundreds of feet in depth. The wells often lead to cave-like systems of horizontal chambers and passages, formed where the melt water reached a layer of ice too hard to penetrate.
10
In case of emergency
Guides keep harnesses, ropes, and other rescue equipment cached in barrels at various points around the trail.
11






Sweet photos. I’m so excited to be there in about a month!
Great photos! I was there in April but it was a bit overcast. Did you do the Big Ice tour?
Pictures worth a thousand words; froze my butt-off looking and almost grabbed the drink in photo #11 !
Unbelievable, Adam. You had me with the first shot.
Did this exactly 4 mths ago! Amazing!
Glad you got such excellent weather, and it looks like a great time!
Well done! And lovely pics, of course.
Beautiful; I especially liked #1.
[...] To get in the mood, check out this Photo Essay: Trekking Ice in Los Glaciares National Park. [...]
[...] This little-visited countryside forms the southern part of Los Glaciares National Park. During the weekends, Argentineans tended to show up with barbecues and radios, but otherwise we [...]
[...] trekking the glaciers in Los Glaciares National Park or hiking Fitz Roy, this tourist town in the Patagonia region of [...]