good first step check with the ag department at either CSU or UC will be able to help with what you can raise or grow, Water will be a major issue can you put in a well, truck it in my understanding it is illegal to catch water in Co, but not sure, will need to build up the land, run the numbers and buying good land could be about the same price as making desert land workable.
best of luck and go in with your eyes wide open
best of luck and go in with your eyes wide open
