The series sees Pryce working with Yellowstone actress Kelly Reilly and Rafe Spall, who play teacher Jackie Ellis and Det Eric Bull.
Speaking with Behnaz Akhgar on BBC Radio Wales, Reilly shared her own memories of her first trip to Wales as a child with her “eccentric” headteacher.
“He took all the kids who couldn’t afford to go to the skiing trip and he took them camping instead,” she recalled.
“We went camping at the foot of Snowdon and [he] took us up it, and it was one of those memories as a kid that stayed with me.
“I feel so lucky that I got to go to work every day with such great actors and great script in this beautiful location.”
Her co-star Spall called the location the show’s “main character”, as well as the challenge that the extreme weather creates for the drama’s plot and characters.
He said: “When I watched it I was like ‘gosh, this doesn’t look like telly, this looks like a film.’
“It’s so, so beautifully shot.
“I hope the Welsh will be proud of where they’re from.”