Sastrugi
O'Brady's Sled Next to a Sastruga
O’Brady’s Sled Next to a Sastruga. Photo: Colin O’Brady

โ€œSastrugiโ€ has been both the word of the day and the single largest pain in the ass so far for American Colin Oโ€™Brady as he tries to become the worldโ€™s first man to traverse the Antarctic unsupported.

Even if not immediately familiar with the word (originally drawn from a Russian dialect),ย most skiers will recognize a sastruga (plural: sastrugi) when they see one. They are โ€œspeed bumpsโ€ of frozen snow blown by the wind into a wavelike pattern (*in thinking of an inbound example of where they tend to form, Iโ€™m reminded of where A-Basinโ€™s Pallavacini lift crests the ridge shortly before unloading.)

Sastrugi
More Sastrugi. Photo: National Snow and Ice Data Center

Sastrugi may be nothing more than a natural curiosity for most of us, but when youโ€™re dragging a 300-pound sled all day, day after day, for more than 900 miles as you ascend from sea-level to 9,000 feet, as Oโ€™Brady is, they can be a titanic bummer. Especially when calories are a major concern.

He explained the challenge on Instagram Monday:

So keep an eye out for sastrugi and impress your friends and strangers on the lift with your new word.

And if youโ€™d like to follow along on Oโ€™Bradyโ€™s journey, heโ€™s documenting it meticulously on Instagram and even fielding questions on Twitter.