214 



W. T. LEE AFTON CRATEES OF NEW MEXICO 



Profile; Na+ural Scale 

 ..^ Exagerated Scale 



Horizontal Scale 

 o 



1 MILES 



Vertical Scale 



1000 O lOOO FEET 



t L— 1 1 1 1 I 



:>-0-V--'/>:y'v 



Basa it 



Stratified Sand 



Un stratified Sand 

 and Volcanic Cinders 



Figure 1. — Contour Map and Cross-section of Kilburn Crater. 



Potted lines of section indicate probable profile before outline was modified by caving 



of sides. 



