Figure 4. Collapse of river bank due to sand and gravel mining in Luku

From

Environmental Effects of Sand and Gravel Mining on Land and Soil in Luku, Minna, Niger State, North Central Nigeria

Ako T. A., Onoduku U. S., Oke S. A., Essien B. I., Idris F. N., Umar A. N., Ahmed A. A.

Journal of Geosciences and Geomatics. 2014, 2(2), 42-49 doi:10.12691/jgg-2-2-1