Denver and surrounding areas (I tend to call everything east of Golden and west of Kansas Denver ) , wants them to help in research for older places to metal detect.
I hope these links work. If not go to the USGS store at [url=http://store.usgs.gov" onclick="window.open(this.href);return false;]http://store.usgs.gov[/url] Search for historical maps or the library of congress historical maps.
I have the colorado 1894 map. It is taking too long to load the 'better view'. It may take less time to go down to the store at the Fed Center. Problem there is that they are only open M-F 9-4 or something like that. It is a very way cool store tho.
edited to add - the denver historic trail map finally loaded. Looks interesting. Only goes as far west as Shaffer's Crossing tho. It looks like it has a lot of old info on it. Maybe where people are buried or those are the names of townsites that don't exist anymore???????//
I am thinking more recent. going back from present in 10 year increments. From what Ive researched, much of the city was rebuilt in the 60s and 70s leaving a lot of older places under concrete. A lot of what has been left is now designated national historic sites, which is a strict no go for metal detecting.