MacLean,  Kerry Lee <br/><br/>
Pigs over Colorado / 
written and illustrated by Kerry Lee MacLean 
 - Colorado  On the Spot! Books  1997 
 - 1v. (unpaged)  col. ill.   23 cm.  
<br/><br/> The sky-piggies have fun on vacation in Colorado 
<br/><br/><label>ISBN: </label>0965299813