豊州 Hōshū
豊後国 Bungo province
Relations
| Role | Entry | Location | ||
|---|---|---|---|---|
| Ferry | 伊予国 Iyo province | 伊予国 Iyo province | ||
| Ferry | 周防国 Suō province | 周防国 Suō province | ||
| Bordering | 筑前国 Chikuzen province | 筑前国 Chikuzen province | ||
| Bordering | 筑後国 Chikugo province | 筑後国 Chikugo province | ||
| Neighbouring | 豊前国 Buzen province | 豊前国 Buzen province | ||
| Ferry | 長門国 Nagato province | 長門国 Nagato province | ||
| Neighbouring | 日向国 Hyūga province | 日向国 Hyūga province | ||
| Ferry | 土佐国 Tosa province | 土佐国 Tosa province | ||
| Neighbouring | 肥後国 Higo province | 肥後国 Higo province | ||