Hunters discussing Unit 42 in Colorado emphasize its challenging terrain, which requires good physical fitness and navigation skills, particularly in its mountainous areas. The unit is noted for a diversity of game, including elk and mule deer, with some hunters recommending late-season hunts when these animals are more active and easier to locate in sheltered areas. Draw odds are competitive, suggesting the importance of applying early and considering preference points to increase chances. Overall, successful experiences highlight the benefit of thorough pre-season scouting to identify promising locations and game patterns within the unit's varied landscape.