Ray Zahab is no stranger to running hard to DO:MORE in adverse conditions.

In 2006 and 2007, he was part of an extreme running team that ran across the Sahara in just 111 days. In 2010, he ran across Lake Baikal in Siberia, dragging weeks of food and supplies behind him across its frozen surface. In 2011, he ran across the Atacama Desert, and then later in 115 degrees in Death Valley.

If that’s not impressive enough, right this minute, Zahab and partner, Kevin Lin, are running across the Gobi Desert in Mongolia.

The extreme running trek he’s plotted across Mongolia is an incredibly challenging one to say the least. Since setting off on Jun. 23, Zahab has averaged about 40 miles a day – a pace that will take him across the inhospitable 1429.15 mile route in just over a month. Right now, Zahab is somewhere between Senj and Doloon. Lin, his partner, has already dropped behind after suffering an injury along the ultra desert marathon.

Follow Ray Zahab’s progress at his expedition tracker, and check him out on Twitter for photos along the way. Check out our desert survival stories to learn about some other Adrenalists who entered dangerous deserts and lived to tell the tale.