Ulu Siau is a populated place in Indonesia. GeoNames lists its administrative area as North Sulawesi.

Its mapped location is latitude 2.73144° and longitude 125.40825° (WGS84). The recorded IANA time zone is Asia/Makassar. The country record uses the currency code IDR.

The GeoNames record was last modified on 2025-07-19. Use this page to explore the street map, local time, weather and currency reference tools. Community guides and useful local links can be added separately.