C.R.S. Section 38-39-203
No release necessary

38‑39‑100.5
Definitions 38‑39‑101
Effect of deed of trust to private trustee - nature of obligation secured 38‑39‑102
When deed of trust shall be released - definitions 38‑39‑103
Effect of release or partial release before maturity of evidence of debt - release is good as to recitals 38‑39‑104
Satisfaction of mortgage 38‑39‑105
Removal of improvements from encumbered property 38‑39‑106
Future advances 38‑39‑107
Form of written request for release of a deed of trust with production of the evidence of debt 38‑39‑108
Form of written request for release of a deed of trust without production of the evidence of debt 38‑39‑109
When release of deed of trust is recorded 38‑39‑201
Liens not to run over fifteen years 38‑39‑202
Lien extended - method 38‑39‑203
No release necessary 38‑39‑204
Effect of notice of action on lien 38‑39‑205
Action to be brought within fifteen years 38‑39‑206
Does not extend any lien 38‑39‑207
Lien extinguished when action barred 38‑39‑208
Action within seven years when in possession 38‑39‑209
Mortgages to United States