Trailblazers is an expansion for the game Everdell: Spirecrest. Trailblazers contains all the great bonus materials from the Everdell Collector's edition. So this does not contain the expansion Spirecrest itself, just extras to use with Spirecrest.
Trailblazers contains:
9 Discovery cards,
3 Big Critter meeples (peacock, boar, vulture),
4 plastic saddles,
6 Owl meeples with Frog Ambassador and Rabbit Traveler,
6 Mole meeples with Frog Ambassador and Rabbit Traveler,
6 Lizard meeples with Frog Ambassador and Rabbit Traveler,
1 rules sheet