HELI-90/120/140 refers to a helicopter, with the servos orientated at 90 degrees (2 servos, generally beginner helicopters with forward, back, right, and left movement on the cyclic stick), 120 degrees (3 servos- generally for more advanced helicopters that have collective pitch controls on the rotor blades (yes, this means inverted flight too)), ...
canyon. n. 1. (Physical Geography) a gorge or ravine, esp in North America, usually formed by the down-cutting of a river in a dry area where there is insufficient rainfall to erode the sides of the valley.
Canyon Country, Santa Clarita, California. Canyon Country is a community and district within the city of Santa Clarita, located in northwestern Los Angeles County, California, United States. Canyon Country is north of the San Fernando Valley via Newhall Pass through the Santa Susana and San Gabriel Mountains.