Advance
Quarrying
Quarrying has been a basic economic activity since the dawn of humanity. The widespread use of metalworking only increased the importance of prospecting and mining different types of minerals and metals for the development of complex societies.
Advance tree
The root of a tree in 
Traditions.
- Quarrying
March of Akita
Rising Clan
Hatakeyama Heritage
The Kèlè-Koun then 3 more
Ōmi-Genji
Shugo of Iyo
Metallurgy then 30 more
Mining Law then 1 more
Breaker of Chains
Modifiers
Definitionin_game/common/advances/0_age_of_traditions.txt:303
305icon = efficient_mining
307starting_technology_level = 1
308depth = 0
309research_cost = 2.0