Colorado State Body Burial laws.

https://www.colorado.gov/pacific/cdphe/state-rules-regarding-burial-or-cremation

There is no requirement that a dead human body or fetus be buried in an established cemetery.Bodies or fetuses may be buried on private land unless local ordinances prohibit it.Cremation is considered "final disposition" and the state retains no control over disposition of the ashes.Ashes may be disposed of as the next of kin desires except for any restriction by local ordinances.It is important to check any federal, county or local laws and ordinances before disposing of remains.A funeral director is not required. However, the funeral director or person acting as such who first assumes custody of the body is the person primarily responsible for the process of completing the death certificate, obtaining the medical certification and filing it with the local registrar in the county of death.Embalming is not required if disposal is within 24 hours. However, a dead human body or fetus kept more than 24 hours before burial or cremation MUST be embalmed or properly refrigerated.The requirement is not specific concerning type or brand of container for transport. The intent is to preserve the public health and the dignity with which the dead human body is treated.The dead human body or fetus must be in a "tightly sealed container that will prevent the leakage of fluids or odor."