However, you can access a similar location in Gold called the Ice Path, which is located in the far north of the map. This is where you can find the legendary Pokemon Entei, Raikou, and Suicune.
Here's how to get to the Ice Path:
1. Defeat the Elite Four and become the Champion. This is the prerequisite to accessing the Ice Path.
2. Travel to the far north of the map, past the town of Ecruteak City. You'll find a path leading up to a snowy mountain area.
3. Follow the path and you'll eventually reach the Ice Path.
While the Ice Path isn't exactly Dragon's Den, it offers a similar experience of a challenging location with the potential to encounter rare and powerful Pokemon.