As has been stated, the present range of the Negritos of this territory embraces the mountainous portion of the lower half of Zambales and the contiguous Provinces of Tarlac and Pampanga, extending southward even to the very extremity of the peninsula of Bataan. This region, although exceedingly broken and rough, has not the high-ridged, deep-canyoned aspect of the Cordillera Central of northern Luzon. It consists for the most part of rolling tablelands, broken by low, forest-covered ridges and dotted here and there by a few gigantic peaks. The largest and highest of these, Mount Pinatubo, situated due east from the town of Cabangan, holds on its broad slopes the largest part of the Negritos of Zambales. Many tiny streams have their sources in this mountain and rush down the slopes, growing in volume and furnishing water supply to the Negrito villages situated along their banks. Some of the larger of these streams have made deep cuts on the lower reaches of the mountain slopes, but they are generally too small to have great powers of erosion. The unwooded portions of the table-lands are covered with cogon and similar wild grasses. Here is enough fertile land to support thousands of people. The Negritos occupy practically none of it. Their villages and mountain farms are very scattered. The villages are built for the most part on the table-land above some stream, and the little clearings are found on the slope of the ridge at the base of which the stream runs. No use whatever is made of the grass-covered table-land, save that it offers a high and dry site for a rancheria, free from fevers.