Where do you get the TM ancient power in Pokemon soul silver?

You can't get the TM for Ancient Power in Pokemon Soul Silver. Ancient Power is a move that is learned by certain Pokemon through leveling up, not through TMs.

Here are some Pokemon that learn Ancient Power in Soul Silver:

* Larvitar: Learns it at level 46

* Pupitar: Learns it at level 46

* Tyranitar: Learns it at level 46

* Gible: Learns it at level 46

* Gabite: Learns it at level 46

* Garchomp: Learns it at level 46

* Trapinch: Learns it at level 51

* Vibrava: Learns it at level 51

* Flygon: Learns it at level 51

* Beldum: Learns it at level 48

* Metang: Learns it at level 48

* Metagross: Learns it at level 48

If you're looking for Ancient Power for a specific Pokemon, make sure to check its level-up move list to see when it learns it.