The following is a list of Colorado rifle deer units with unfilled tag quotas. These must still pass through the leftover draw process to make it to leftovers. However, very few people take advantage of the leftover draw, and so most of this list should make it to leftovers.
Units 7/8 4th season
Units 9/19/191 2nd, 3rd and 4th season
Unit 16 3rd season (only 4 tags left)
Units 18/28/37/371 2nd season
Unit 20 2nd and 3rd season
Units 27/181 2nd and 3rd season
Unit 29 2nd, 3rd, and 4th season
Unit 33 2nd season
Unit 34 2nd season
Unit 38 2nd and 3rd season
Colorado Leftovers go on Sale August 10th, after the leftover draw.