Magic Mountain is a Southern California theme park.
This episode marks the introduction of the character Hannah Griffith, played by Jessy Schram. She appeared in 4 episodes in total.
Logan (Jason Dohring) calls Hannah, played by Jessy Schram, "Princess." Jessy Schram would go on to play Cinderella in the show Once Upon a Time (2011).
The episode's title is a play on the Motown song "Ain't No Mountain High Enough" written by Ashford & Simpson. The 1967 recording by Marvin Gaye and Tammi Terrell was a Billboard Top 20 hit. Diana Ross' 1970 arrangement of the song was her first solo number-one hit (hitting #1 on both the Billboard Pop and R&B singles charts), went Platinum, and was nominated for a Grammy Award.
At the carnival, Dick (Ryan Hansen) asks Mac (Tina Majorino) if she plans on "popping Cassidy's cherry". Kyle Gallner (Cassidy) was in a movie titled Cherry (2010), in which the main plot point was him being a virgin who had never "popped his cherry".