Me, crooked grind in the summer of 1998. Taken with a disposable film camera. These railroad ties slid quite well for being made of wood. : r/ skateboarding
Grind (skateboarding) - Wikipedia
The ultimate list of skateboard tricks | Skateboarding tricks, Skateboard, Skate art
He Ollied up to a rail grind for the first time. : r/MadeMeSmile
Is skateboarding hard? Why? - Quora
Skateboard Grind Tricks and Slide Tricks
Is there a grind that is considered the most "difficult"? : r/skateboarding