Go buy a 2G chip for your Garmin GPS from HuntingGPSmaps.com for the state of Colorado. You will need a Garmin with an "e" in it. I have one for the State of Montana and it is accurate within 2 feet. You will need to check how accurate the GPS is with the digital maps. Find a section of public land with a county road that runs along the section line. At either corner look for a brass cap, once the cap or a survey marker is found place the GPS on the marker and noted the variance. Do not enter public lands at the boundary but a 100 yards in and turn the bread crum trail on. If anyone says anything you have a record of where you have tresspassed.

The Montana maps and GPS's are very accurate, be positive where you are at and do not take any $hit from anyone one.