Show BOOK CLIFFS COAL FIELD OF GREAT IMPORTANCE Investigations of the coal fields of the thc western states have hae recently formed an Important part of the work of the Geo Gee Geological logical survey A report on the eastern part of the Book Cliffs CUffs coal field In west western est estern ern em Colorado and eastern Utah which was examined In 1903 1904 by G B Richard Richardson son sen has Just been published by the sur survey survey vey as Bulletin The great Uinta basin of rocks which includes the Book cluffs duffs field has lies been but partly prospected and mines are art In operation at only a few places within It but the development and explorations exploration made show that it is one of the tho most extensive and Important coal reserves In the Rocky Rock mountain region The area discussed In Mr Ir Richardsons ns report contains more than a thousand square miles of coal land and more than million tons of available coal The coal Is of cretaceous age Is bituminous forming a fuel of good grade and is now mined only for local use Mr Richardsons report which may maybe maybe maybe be obtained from the survey suney on application application application tion sketches tho the topography and geol geology geology geology ogy of the region gives sections of strata showing the relations and thickness of the tho coal beds and presents analyses of the coals and an account of their develop development development ment by mining It includes also a mat map matot of ot the field columnar sections and re reproductions reproductions reproductions productions of photographs |