When Diana and Tyler begin the climb on the mountain, they put on proper climbing shoes (kletterschuh). Diana wears green shoes, Tyler's are purple. After the accident, they both reach the ground wearing brown footwear.
After he receives a cell phone call from Ed, Curt fakes signal break up and throws the phone away. It clearly slips out of his grip to fall safely a few feet behind his right shoulder before his right arm swings round to the It's more clearly seen with 'frame advance'.
Just after leaving the injured Tyler to get help, the path Diana takes through the rocks is, on a couple of occasions, clearly marked with orange paint.
When Curt Seaver, Tyler and Hugo get in their truck towards the beginning of the film, you can clearly see the crew/equipment reflection in the truck body under the back window as when they back up to pull out of the parking lot.
When telling the story of Snowman's Pass the actor says gold was worth $30 an ounce, gold in the 1890's ranged from $18 to $19 an ounce.