Silicon Valley 
A name given to an area between San Jose and Palo Alto in Santa Clara County, California, US, noted for its computing and electronics industries.
- rockscape
- rock scissors paper
- rock scorpion
- rock sea bass
- rock seal
- rock sedge
- rock serpent
- rocks glass
- rock shaft
- rock shell
- rockskipper
- rock slater
- rockslide
- rock snail
- rock snake
- rock snipe
- rock soap
- rock sole
- rock solid
- rock sparrow
- rock speedwell
- rock spider
- Rock Springs
- rock-spun
- rock squirrel