THE AUTHORS 



BLAND Z. RICHARDSON, research forester on the Mine Spoil and Reclamation Research Work Unit at Logan, Utah, 

 joined the staff of Intermountain Forest and Range Experiment Station in 1962. His research activities have 

 included studies to determine the effect of multiple I6gging roads on moisture regimen, the hydrologic and pedolo- 

 gic effect of grazing on rangelands, the infiltration and erosional behavior of contour trenches on high elevation 

 watersheds, and the effect of voids on the accuracy of neutron moisture measurements. Since 1966 his research 

 has been exclusively on surface mine rehabilitation. He is responsible for conducting research on surface mine 

 problems, testing research results on demonstration areas, and applying these results in cooperation with other 

 federal and state agencies as well as private industry. 



EUGENE E. FARMER, forest hydrologist on the Mine Spoil and Reclamation Research Work Unit at Logan, Utah, 

 joined the staff of the Intermountain Forest and Range Experiment Station in 1964. Since 1966 he has studied 

 reclamation of lands mined for coal, copper, and phosphate. His primary investigations are in surface and subsur- 

 face hydrology, revegetation, and waste dump mass stability. 



