﻿COMPOSTELA-DANAO COAL FIELD. 379 



just as bad. In order to run a traverse along an arroyo, the only place 

 where there is any hope of reaching outcrops and obtaining a key to the 

 structure, I was forced actually to tunnel my way through the vegetation 

 with the help of natives and bolos. This will give some idea of the 

 difficulties we encountered. In one afternoon we covered approximately 

 one-half mile. In a way it might appear that I owe an apology for 

 publishing anything at all on this region at this time, but I feel that 

 even the incomplete data which I can furnish will give information which 

 will be of some guidance to those financially interested in the field and of 

 interest to geologists in other lands. 



I shall refer readers of this paper to the work of Abella, cited above, 

 for an account of the mining work done in Spanish days in this field; 

 however, I shall exhibit one map which was made after his publication. 

 An examination of his geologic map will show that he did not attempt to 

 map the region in detail, so that we feel that the new one will be a 

 distinct advance on what has already been done. I shall add no more 

 in regard to the present state of exploration and development than that 

 there are two companies on the ground who are making vigorous and 

 honest efforts to ascertain the value of the properties. There are many 

 interesting features in connection with the work which I would like 

 to publish, but both companies in extending me many courtesies and 

 showing me everything have requested that for the present at least this 

 information be considered confidential. I wish to make grateful acknowl- 

 edgments to the Bureau of Constabulary, which, through its two officials 

 in Cebu and Capt. H. W. Hunt at Danao, rendered much assistance and 

 showed our parties numerous personal courtesies; and to Mr. H. D. 

 Everett of the Bureau of Forestry, for valuable forestry notes. 



GEOGRAPHY. 



The area under discussion comprises a rectangular tract of about 

 100 square kilometers (36 square miles) of territory on the upper waters 

 of the Cot-Cot and Danao Bivers. The eastern boundary of the district 

 is the front, or coast, range of hills which includes Mounts Licos and 

 Mangilao ; the western is formed by the Cordillera Central, which is the 

 long, sinuous backbone of the island. The area extends as far north as 

 a line east and west from the pueblo of Carmen, while Mount Acsubing 

 marks its southernmost extension. 



CLIMATE. 



The monsoons are not as clearly marked in Cebu as. for instance, 

 they are in Luzon. This is largely duo to the fad that the mountains 

 are not so high, nor is the width of the island sufficiently great to 

 make conditions on one coast appreciably different from those on the 

 other. 



