I got national geographic trails ill. maps for my area in colo. I bought them online at the nat geo store took 6 days to get to my house. about ten bucks each. They are goooood. Go to nat geo store you can even view the maps online to make sure they are the area you need
The BLM building on Youngfield St. on the west side of Denver has a great map store and sells all the BLM quadrangles (1:100,000) for $4 a piece. They are probably the best bet for showing BLM, FS, State, and private land.
The USGS store in the Denver Federal Center (don't bring any guns or knives) also has a great selection of maps. You can get 1:24,000 topos for the entire state. This store also has maps of just about anything else you can think of, like oil shale, geological strata, vegetation, you name except for a map of 6x6 elk bedding and feeding areas.
I must admit that I have missed a big game animal with a rifle. And not only was it a bull elk, it was the largest bull that I have had in my sights with a tag in my hand. But, as with most "missed shot" stories, I have an excuse. Moisture doesn't really ever bode well for hunting equipment. When moisture (either rain or snow) gets into a firearms barrel, nothing good takes place. A couple rain drops down there can change the point of impact drastically and a barrel jammed with snow after a...