Western Legends: Prospecting Deck Variant

From BoardGameGeek:

The Western Legends: Prospecting Deck adds more variety to your wild west adventures! Determining when and where gold nuggets become available to be mined. It also introduces brand new mining events! Making each game feel fresh and unique. Nuggets spawn as players become legendary. Randomizes amount available at each mine. 16 card deck fits in the Western Legends: Mountain Range. This was first made available as a print-and-play Kickstarter exclusive which is therefore not to be distributed outside of the original Kickstarter contributors.