It still amazes me how people make comments without a simple understanding of what was said. Not once did I say it was legal on a Federal level to grow or buy marijuana. You should really read through the entire thread or at the very least, get some grasp of the conversation before typing redundant comments that do not apply.
I did read it. I even comprehend what I read. You said--and I quote--"Stay off Federal land and you can smoke and purchase all you want because the Colorado .gov has said it is legal to do so." You are so completely wrong that there's not even an Angstrom of room to debate. The feds can bust you anywhere, federal land or not. No, the state/local cops will not bust you, and the DA won't prosecute, but that doesn't restrain federal officials. They can still investigate, arrest, and prosecute anywhere in the state of Colorado, federal land or not.
You should really "read through" and "get a grasp" of the concept of concurrent jurisdiction.