It will be helpful to know what type of project you want to set up, but it sounds like you are wanting to create a new place? If so, there are a lot of previous threads on the forum, including:
https://forum.inaturalist.org/t/how-to-add-new-place/10321
https://forum.inaturalist.org/t/how-to-create-a-new-place-on-inat/3281
And the Guide on iNat itself:
https://www.inaturalist.org/pages/getting+started#create_place