| Official Name: | Roundtop Mountain |
| Type: | Stratovolcano |
| Most Recent Activity: | |
| Seismically Monitored: | No |
| Elevation: | 6138 ft (1871 m) |
| Latitude: | 54.7992° N |
| Longitude: | 163.5914° W |
| Quadrangle: | False Pass |
| CAVW Number: | 1101-38- |
| Pronunciation: | |
| Synonyms: | Roundtop Mtn. Dome Round Top |
| Nearby towns: | False Pass 8 mi (13 km) Pauloff Harbor 43 mi (69 km) Cold Bay 43 mi (70 km) King Cove 54 mi (87 km) Anchorage 667 mi (1073 km) |