Indonesian Railway Map:
East Java
Note: There are several disused railway lines that surround the current mainline between Surabaya and Mojokerto. And the branchline between Jember and Situbondo, and to the North of Bojonegoro, had seen no traffic in past several months, despite the fact that they're still listed as "active" by Indonesian State Railway.
Map is Copyright 1982 by PT Pembina