Porcupine national forest 

 - Washington,D.C. :  United States Government Printing Office,  1975 
 - xv, 672 p. :  maps ;  28 cm. 
<br/><br/> Forest lands 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological resources<br/>Natural resources
<br/><br/><label>Dewey Class. No.: </label>333.7509798