ILLUSTRATIONS 



Plate 1 

 Relief model of Baguio, showing striking contrast between Baguio Plateau 

 and the deeply incised valleys of Bued River, Gold Creek, and 

 Antamok River. (From the model made in the Bureau of 

 Science from the map by A. J. Eveland.) 



Topographic map of Trinidad Valley and vicinity. 



Panorama of Baguio Plateau taken from Mount Mirador looking to the 

 north and east. Naguilian Trail on the left; the rugged lime- 

 stone hill on the left at the skyline is one of the portals of 

 Trinidad Water Gap. The rounded hills in the background are 

 those of Pacdal. Dominican Monastery, on the right. A small 

 residual of Baguio formation resting unconformably upon Plio- 

 cene limestone is seen just beyond the fork of Mount Mirador 

 and Dominican Roads. (Photograph by Father Algue.) 

 Plate 4 



Fig. 1. Mount Data, showing fault scarp on the east side. (Photograph 

 by W. D. Smith.) 



2. Haight's place, Pauai, showing remnant of old erosion surface. 



(Photograph by W. D. Smith.) 



3. "Hanging valley" of old erosion surface near kilometer 81 on 



trail from Baguio to Mount Data. (Photograph by W. D. Smith.) 

 Plate 5 

 Fig. 1. Westerly dipping Malumbang limestone about 4 kilometers west 

 of Baguio City Hall on the Naguilian Road. 



2. Unconformable contact between arkosic Vigo sandstone and the 



overlying northerly dipping Malumbang-Pliocene limestone. The 

 fragments embedded in the limestone consist of the stems of 

 coral algae. 



3. Detail of coralline limestone showing abundance of stems of coral. 



East side of Trinidad River, in center of Trinidad Water Gap^ 



1. Klondike's place near camp 1. Pliocene corals were collected from 



conglomerate strata at the end of the bridge. A small Pecten 

 sp. was found in the sandy matrix of the conglomerate 10 meters 

 from the house toward the left of the picture. 



2. Baguio from Pacdal, showing the sharp contrast between the 



Santo Tomas fault block and Baguio Plateau. 



