Obviously Colorado is larger than San Diego, California because Colorado is a state and San Diego is merely a city.
One center can be found at the Cornell University College Veterinary Medicine. Another can be found in San Diego, California. There is another in Colorado Springs, Colorado.
San Diego is in Southern California, one of the southern-most cities in CA.
San Diego City is in San, Deigo County, California. Was not that a hard one?
California
Colorado is "further away" from California than Utah is in the sense that, given a pair of points in Colorado and California, there is at least one point in Utah which is closer to the point in California than the point in Colorado is.
The address of the Committee Of One Hundred is: , San Diego, CA 92101-4753
Colorado River, which flows through the Grand Canyon drains into the Gulf of California or do you mean one of - Colorado River (Texas) Colorado River (Argentina) Colorado River (Costa Rica) Colorado River (Chile) Colorado River Compact
Yes, there is a San Diego in Texas. And there are cities in several other countries (such as in Mexico and Columbia) that have San Diego in their name. But the one in California is probably the best known, if you are asking about Americans.
Mission San Diego Alcala
One
There are several of them, right at the US-Mexico border. These include:San Diego, CACalexico, CAYuma, AZDouglas, AZColumbus, NMEl Paso, TXPresidio, TXDel Rio, TXEagle Pass, TXLaredo, TXMcAllen, TXBrownsville, TX
Colorado is one hour ahead of California.