I am unsure of Colorado law, but in most states, you can file for divorce from an estranged husband in another state if you are a legal resident of the new state. Sometimes you have to live there and pay taxes for six months or more to be a leagal resident.

You can probably look in the paper and find a "do it yourself divorce kit." You will have to fill it out meticulously. But if you follow directions explicitly, you can file your own divorce in the new state and he will have to come there to contest it if you have filed in the new state first.
May God bless you.
smile