Depending upon the conditions, either nucleation or growth may be predominant over the other, and as a result, crystals with different sizes and shapes are obtained (Control of crystal size and shape constitutes one of the main challenges in industrial manufacturing, such as for pharmaceuticals).
For the region, see San Fernando Valley. San Fernando is a city located in the San Fernando Valley, in the northwestern region of Los Angeles County, California. It is completely surrounded by the City of Los Angeles.
In 2015 Lankershim Boulevard in North Hollywood was part of the first San Fernando Valley CicLAvia, an event sponsored by the Los Angeles County Metropolitan Transportation Authority in which major roads are temporarily closed to motorized vehicle traffic and used for recreational human-powered transport.