Subject
- Geographic Subject: Montgomery County (Ind.)2
- Geographic Subject: Parke County (Ind.)2
- Geographic Subject: Sullivan County (Ind.)2
- Geographic Subject: Vigo County (Ind.)2
- Geographic Subject: Warren County (Ind.)2
- Topical Subject: Caves2
- Topical Subject: Limestone2
- Topical Subject: Road materials2
- Topical Subject: Sandstone2
- Topical Subject: Shale2
- Geographic Subject: Attica (Ind.)1
- Geographic Subject: Benton County (Ind.)1
- Geographic Subject: Blackford County (Ind.)1
- Geographic Subject: Brazil (Ind.)1
- Geographic Subject: Bridgeton Region (Ind.)1
- Geographic Subject: Brown County (Ind.)1
- Geographic Subject: Clinton County (Ind.)1
- Geographic Subject: Crawford County (Ind.)1
- Geographic Subject: Dearborn County (Ind.)1
- Geographic Subject: Delaware County (Ind.)1