Underwood, John J.,  1905- <br/><br/>
Physical land conditions :  in the western and southeastern Baca County soil conservation districts, Colorado / 
by John J. Underwood. 
 - Washington, D.C. :  U.S. Dept. of Agriculture, Soil Conservation Service,  [1944] 
 - [1] leaf , 54 p. :  ill., maps (2 folded in pocket) ;  27 cm. +  58 plates (   maps : col. ; sheets 51 x 35 cm.), all in portfolio. 
 - Physical land survey / U.S. Soil Conservation Service ;  no. 30 .
 - Physical land survey ;  no. 30. .
<br/><br/><label>LCCN: </label>agr44000181  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Land use--Colorado--Baca County.<br/>Soil conservation surveys--Colorado--Baca County.
<br/><br/><label>LC Class. No.: </label>S623  / .U44 no. 30 
<br/><br/><label>Gov. Doc. Class. No.: </label>A 57.24:30