What: IguanaThon 2026

When: May 8, 12pm-5pm, May 9, 9am-5pm

Where: St. George

Did you know that there are IGUANAs in Utah? 🦎

Once thought to be extirpated from Utah, it is now known that desert iguanas (Dipsosaurus dorsalis) inhabit the sliver of the Mojave Desert that cuts through the southwestern corner of the state.

But what is the true range of this species in Utah? What does the population size look like?

You can help scientists answer these questions by participating in IguanaThon, an annual event that brings together scientists, wildlife managers, and the community to assess this rare species in southern Utah.

These guided surveys are a great opportunity to get hands-on fieldwork experience, make connections, and celebrate the magic of the desert.

No experience is needed, just a willingness to learn the survey protocol, work as a team, and respect the wildlife and landscapes you interact with.