Where was Stanley and Livingstone filmed?

1939 film by Henry King, Otto Brower

Stanley and Livingstone (1939) was filmed in Sun Valley and Sun Valley, 2 places named in its Wikipedia article, in the United States. Wikidata itself records the shoot only as Tanzania. Each place says where its claim comes from.

See them on the map → Wikipedia Source data

Places per Wikipedia's article

The Wikipedia article names 2 places. Each links to the sentence that says so.

Recorded only at country level

Also filmed in Tanzania, but the exact places are not known, so they are not on the map.

Filming locations that are mapped there: Tanzania

Its Wikipedia article also says it was filmed in Kenya, Uganda, without naming a place, so it is not on the map.