| Official Name: | Herbert Island |
| Type: | Stratovolcano with caldera and linear ridge |
| Most Recent Activity: | |
| Seismically Monitored: | No |
| Elevation: | 4232 ft (1290 m) |
| Latitude: | 52.741° N |
| Longitude: | 170.113° W |
| Quadrangle: | Amukta |
| CAVW Number: | 1101-22- |
| Pronunciation: | |
| Synonyms: | Herbert Island Chegulak island Chuginak island Chuguliak island Tchagulak island Tchegoulak island Ishugid island Ullyagin island Ulyaga island |
| Nearby towns: | Nikolski 53 mi (86 km) Attu Station 131 mi (211 km) Unalaska 167 mi (269 km) Shemya Station 167 mi (269 km) Anchorage 953 mi (1534 km) |