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Subject
- Topical Subject: Geology5
- Geographic Subject: Indiana4
- Topical Subject: Oil wells2
- Geographic Subject: Clark County (Ind.)1
- Geographic Subject: Gibson County (Ind.)1
- Geographic Subject: Lawrence County (Ind.)1
- Geographic Subject: Orange County (Ind.)1
- Geographic Subject: Pike County (Ind.)1
- Geographic Subject: Vigo County (Ind.)1
- Geographic Subject: Washington County (Ind.)1
- Topical Subject: Erosion1
- Topical Subject: Gas wells1
- Topical Subject: Marl1
- Topical Subject: Oil fields1
- Topical Subject: Peat1
- Topical Subject: River capture1
- Topical Subject: Watersheds1