"Peak" is a deck designed and sold by Stellar Factory, a company that does a lot more than make and market decks of designer playing cards.
The deck is themed around mountains of Colorado with elevations of 14,000 feet or higher. Each card has a minimalist line art representation of each of these so-called 14ers or Fourteeners. I'm not familiar with most of these mountain ranges, but of those that I am familiar I have to say they did a pretty spot on job representing the shape and face of the mountain range. It's pretty sick.
Additionally, the back of the card has a nice line drawing treatment of a mountain range peaking through the clouds and reaching for the sun and the pips are treated equaly nice, minimally, and angular. The card stock and print and gloss treatment aren't anything of special note, as far as I can tell, but it's a top quality deck of cards all around.