WeBeHigh is useless. The city pages haven't been updated in ages. I think it's basically an abandoned site.
I used to live in Denver(Aurora actually). Just ask a few younger people, there usually friendly. The bud is fucking dank too.
It depends, some cities are updated every few months. This happens to be 4 years old, so I don't know if the advice is useful or not. The legality levels are very useful.