Where to get Obsidian in Roots of Pacha

Cave & Challenges Guide 1. Complete the Glyptodon Totem challenge    • How to Get Flint in Roots of Pacha   2. Complete the Owl Totem challenge    • Roots of Pacha - Owl Totem Guide (Location...   3. Mine Obsidian to Upgrade Axe & Hammer    • Where to get Obsidian in Roots of Pacha   4. Complete the Monkey Totem challenge    • Roots of Pacha - Monkey Totem Guide (Locat...   5. Mine Copper to Upgrade Sickle    • Where to find Copper in Roots of Pacha   6. Compete the Bear Totem challenge    • Roots of Pacha - Bear Totem Guide (Locatio...   7. Get some Bronze to Upgrade water bucket    • How to get Bronze (Tin) in Roots of Pacha   8. Complete the Horse Totem Offering    • Roots of Pacha - Horse Totem Guide (Locati...   9. Complete the Final Challenge    • Roots of Pacha - The Final Cave Challenge ...   10. The Dark Rooms    • Roots of Pacha - The Dark Rooms   12. The Secret of the Caves    • Roots of Pacha - Cave's Secrets (Secret Ro...   Roots of Pacha Once you complete the Owl Totem challenge, (here is my video about the puzzle if you haven't already)    • Roots of Pacha - Owl Totem Guide (Location...   you can transform into an owl by interacting with special symbols on the ground. Similar to the ones found in the puzzle. You will also obtain a map to navigate through caves.