The images are the first photographic evidence of the endangered cats' presence in that Central Asian country, on the western edge of their known habitat.
The Panthera and WWF conservation groups said in a statement the leopards were caught on cameras placed in the Hissar Nature Reserve in late 2013.
They are "expert at navigating the steep and rocky alpine regions of Central Asia...reconizable by [their] long tail and almost-white coat, spotted with large black rosettes," according to WWF Global.
They are increasingly victims of habitat loss and hunting, according to wildlife experts.
Panthera and WWF said:
Images taken through the study confirmed the presence of other predators and a number of prey animals, including ibex, wild boars, and hares, Panthera said.
The statements said the confirmed presence of snow leopards in the westernmost part of the species’ range and the availability of prey "provides hope for the survival" of the snow leopard.
An estimated 3,500-7,000 of the species remain in 12 countries across Asia.
The Hissar Nature Reserve abuts the western part of the Pamir Mountains.
Snow leopards are a prized target for poachers, who can sell their pelts for more than $1,000.
WWF and Panthera said in their statement:
-- Antoine Blua