You can go to the Colorado Dog Federation and look up dog breeders for Labradors. You can also contact the AKC Breeders Directory, click on the breed and state.
Lastly you can always check on here for breeders in Colorado with the breeders directory on this forum or the puppy listing.
goodluck
mary
The Labrador Retriever Club of Greater Denver has Breeder Referral. Contact pndrgnlabs@aol.com and you will get a list of breeders who have current litters or have litters planned.