I'm looking for good sites where there's a good amount of urban decay. Abandoned buildings, pools, towns and such in or around the Sacramento, shingle springs and cameron park areas. A place like Fort Ord would be amazing. The areas mentioned above are ideal but if you know of a good ghost town or something feel free to throw that in too! Thanks everybody!

Here is a web search
abandoned buildings - Google Search

run down buildings - Google Search

ghost towns - Google Search

This was right across the Ohio River from me
Dixmont State Hospital

For more type in the search engine
Run down buildings and the area you want