I’ve been on a northern adventure.
I spent the end of winter in Yellowknife, Northwest Territories, and was recently stationed in Fort Simpson.
While on the Mackenzie River, I found a few rocks. Nothing too exciting, but some shell and sea floor fossils.
Here’s what rocks up there look like.

Sea floor and shell fossils. The Mackenzie River is covered with this. I believe it’s in limestone but could be wrong.
Planning a trip to Yellowknife, Whitehorse, and surrounding areas in the spring. Any suggestions as to spots for rock hounding?
Grandfathers are the rocks they use in native sweats usually lava type rocks along river banks