there is no place established in iNat for Little Rock. so i think the best thing to do in this particular case is to create a place for the city, since it’s big enough to deserve a place of its own.
here’s some information about how i would go about doing that, if you’re interested in trying to create the place: https://forum.inaturalist.org/t/creating-a-place-for-your-us-city-using-census-bureau-geography-data/21927. (if you’re having problems creating the place, i can create one for the city when i get some time later.)