What does RR stand for?

Rifleman Radio

Rifleman Radios

Rifle Range

Rifle Regiment

Rift Rivals

River

In geology, saltation is a specific type of particle transport by fluids such as wind or water. It occurs when loose material is removed from a bed and carried by the fluid, before being transported back to the surface. Examples include pebble transport by rivers, sand drift over desert surfaces, soil blowing over fields, or even snow drift over smooth surfaces such as those in the Arctic or Canadian Prairies.

River & Rangeley

River'S Rest

Riverport Railroad

River Raider