It is narrowly defined as an area that covers the northern Kyoto Prefecture (former Tango Province and most parts of former Tanba Province) and northern Hyogo Prefecture (former Tajima Province and a part of Tanba Province).
狭義では、京都府北部（旧丹波国の大半、旧丹後国）と兵庫県北部（旧但馬国、旧丹波国の一部）を指す。