Here is the full list of all 72 Golden Rails: Valuable Package achievements.
Collect 100 food
Collect 4000 food
Collect 10,000 food
Collect 100 wood
Collect 4000 wood
Collect 10,000 wood
Collect 100 iron
Collect 4000 iron
Collect 10,000 iron
Collect 100 money
Collect 4000 money
Collect 10,000 money
Collect 10 letters
Collect 200 letters
Collect 500 letters
Collect 10 packages
Collect 200 packages
Collect 500 packages
Build 10 railroad sections
Build 50 railroad sections
Build 100 railroad sections
Plant 10 gardens
Plant 20 gardens
Plant 40 gardens
Collect 10 dynamites
Collect 50 dynamites
Collect 100 dynamites
Arrest 10 bandits
Arrest 30 bandits
Arrest 50 bandits
Complete the minigame with 3 stars
Complete 3 minigames with 3 stars
Complete 5 minigames with 3 stars
Collect 20 tools
Collect 100 tools
Collect 200 tools
Build 10 wigwams
Build 20 wigwams
Build 50 wigwams
Build 10 houses
Build 50 houses
Build 100 houses
Complete Florida
Complete Florida with 2 stars
Complete Florida with 3 stars
Complete Local Tribes
Complete Local Tribes with 2 stars
Complete Local Tribes with 3 stars
Complete the Village
Complete the Village with 2 stars
Complete the Village with 3 stars
Complete the Desert
Complete the Desert with 2 stars
Complete the Desert with 3 stars
Complete the City
Complete the City with 2 stars
Complete the City with 3 stars
Complete the Pursuit
Complete the Pursuit with 2 stars
Complete the Pursuit with 3 stars
Find 5 owls
Find 30 owls
Find every owl
Construct 1 building in the city
Construct 10 buildings in the city
Construct every building in the city
Get every achievement for level 1
Get every achievement for level 2
Get every achievement for level 3
Complete bonus levels
Complete bonus levels with 2 stars
Complete bonus levels with 3 stars