UNITED STATES
DEPARTMENT OF THE INTERIOR
NATIONAL PARK SERVICE
Region III
Santa Fe, New Mexico.

CONTENTS COVER Giant Dome in Carlsbad Caverns National Park, New Mexico. This huge stalagmite is 62 feet high and 16 feet in diameter. It is estimated to be 60 milion years' old AS TOUGH AS THEY COME By Earl Jackson . . . . . Page 3. TECHNIQUE OF MOUNTAIN CLIMBING By Ernest K. Field . . . . . Page 10. POISONOUS INSECTS By Harold J. Brodrick . . . . . Page 19. PRAIRIE DOGS By Kennedy N. Clapp . . . . . Page 21. NAVAJO LAND By Dorothy Elder . . . . . Page 27. ROCK BISCUITS By Dr. Chas. N. Gould . . . . . Page 31. LIGHT IN THE DARKNESS By Leo A. McClatchy . . . . . Page 32. THREATENING ROCK CRASHES Page 37. GREAT HORNED OWLS By Natt N. Dodge . . . . . Page 38. ODDITIES Page 42. The contents of the Region III Quarterly are not copyrighted. Other publications are at liberty to quote from, or reprint, the articles when proper credit is given. M. R. Tillotson Leo A. McClatchy Regional Director Editor Santa Fe New Mexico

REGION III

ARIZONA - ARKANSAS - NEW MEXICO - OKLAHOMA
TEXAS -UTAH - AND SOUTHERN PARTS
OF COLORADO - NEVADA