The Santa Cruz "river" is an Arroyo, i.e. has flowing water only a few days a year. 
Wasn't always like that. Urban sprawl and water demand for swimming pools and golf courses is a factor. 
Like a lot of university towns Tucson has more interesting arty stuff 
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| Mural | 
|  | 
| Funky sign | 
 
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| Apartments near us | 
We could figure out if this was a converted motel or built as an apartment
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| Santa Catalina Mountains in the morning | 

This little mountain (known as  "A" Mountain for the white "A" at the top) was the closest hill to the city.
So I got up early and climbed it up a little ways to take pictures.