Eco | Potential biome where you can find Gold Ore

Because of my awful, at times, English and a lot of repetitive words such as "map, initial, gold ore" I will sum up:
Back in January I while I was looking for Copper I ended up finding Gold Ore between the Boreal Forest & Tundra biomes; between Y levels 33 - 59.
Last week I started a new map and again between the Boreal Forest & Tundra biomes at Y levels (35 - 47) I found Gold again.
This is not intented to be an ultimate guide where to find Gold Ore, it is more of a personal experience what worked for me accross two maps.
Of course I cannot say this is 100% consistent, as I need to experiment a bit more on different maps.
I hope this is helpful to you all.
Plese let me know of your thoughts and your experience.

[@VGV0]

Invest in signs to navigate

[@raechelsaunders]

will try this. Struggling to find gold!