Plate 3 



1, Air view, looking approximately south, with Sec. 33, T. 6 N., R. 16 E., near the 



middle of the picture (prominent but small isolated timber butte in this 

 section). The meandering watercourse is Widdecombe Creek and is 

 developed on the nonresistant Upper Lebo (Fort Union No. 2), as are the 

 other low sodded areas through the central part of the picture. The main 

 timbered ridge across the photograph is the northwest side of Bear Butte. 

 The broken area between the small outlying butte and the patch of timber 

 (on Bear Butte) farthest to the left, just beyond the road, is Loc. 5, one of 

 Douglass' two localities where mammals were first found in the Fort 

 Union. Part of Lion Butte forms the skyline in the center and right parts 

 of the picture. 



2, Air view of the east side of the north end of Bear Butte, looking approximately 



south in Sec. 34, T. 6 N., R. 16 E. The rimrock of Bear Butte, along the 

 upper edge of the picture, is the basal Melville (No. 3) sandstone, and the 

 rest of this area is all on the Upper Lebo (No. 2). The shale exposure in 

 the coulee above the road in the upper left of the picture is Loc. 6, one of 

 Douglass' discovery sites. 



