most salamanders live in a relatively small area, and there is probably an alluvial pond or some other similar water-source in your area. I would advise releasing it back near where it was originally found as salamanders are fairly delicate and difficult to properly raise in captivity. given their limited range, you will probably see more of them.
If you find out when the species that you have found spawns, you could even set up a surveillance near any alluvial (temporary) ponds in your area after a rainstorm around that time, you could then see potentially tens of them in one place if your lucky
If you find out when the species that you have found spawns, you could even set up a surveillance near any alluvial (temporary) ponds in your area after a rainstorm around that time, you could then see potentially tens of them in one place if your lucky