"It's in such a remote part of Thailand that not a lot of tourists get to it."
The race is in two parts with the 100km one weekend and the 50km race the next. Mr Norton said this meant he could concentrate on each race as it happened and capture as many of the 200 runners as possible.
His speciality is snapping people enjoying their hobby such as running, mountain biking and adventure racing.
As well as his Indiegogo crowdfunding offers he's offering limited, one-hour photo shoots of the buyer's choice, whether a sitting portrait or action session for $75.
"This is a unique way to document a hobby that is very hard to capture. I did the XTERRA world championships in 2009 and I got three average photos from that race. I've always had the idea of doing something a bit more specialised.
"I've committed to go to the race but the more money I raise the nicer the book will be."
The races are based in the Thai village of Ban Tham and the 50km loop goes through three hill tribe villages. Before he heads to Thailand, however, he will first photograph the Half Ironman in Samoa.
To find out more about the crowdfunding project go to www.indiegogo.com/projects/photo-documentary-of-the-1st-thailand-ultra-marathon or on Facebook at www.facebook.com/Mead.Norton.Photography.