The Blunt-nosed leopard lizard (Gambelia sila) is an endangered and charismatic lizard species native to California’s Central Valley. The Fresno Chaffee Zoo (FCZ) has maintained a captive assurance colony of G.sila since the summer of 2020. The spring and summer of 2023 marks the third breeding season for the colony. We founded the colony with seven lizards captured from Panoche Plateau and the colony has since produced 107 animals and we released 17 back to Panoche Plateau in 2023. Our rapidly growing colony is now housed in a newly constructed Conservation Action Center building on zoo grounds. In addition to housing the colony, this building will highlight FCZ’s local conservation work and will provide literal windows into the conservation science happening at FCZ as we study G. sila. We will continue producing, releasing, and monitoring G. sila annually until >50 natural born females successfully reproduce on the Panoche Plateau and the population can grow without further captive propagation.