In New Mexico, you have to pick a season, either black powder or one of the three rifle seasons, but not one of each. Now, I don't hunt with a bow, don't know how they do that there. Other states, though, you can hunt primitive (black powder) AND rifle. Is Colorado one of those?????? The neat thing about the black powder season in NM is it's well before any snowfall and the weather is still decent. Also, with black powder, you get a month or there abouts. With rifles, first season is a 2 day weekend, then there's a 3 day season, 5 day, last season is 7. Me, I'd rather hunt BP if I lived there and get a month of fun even if I had to get real close for a shot.
Now, this is mule deer, don't know about elk, ain't done that, yet.