great Manitou also employed her to manufacture thunder and clouds for the valley. Sometimes she wove the clouds out of cobwebs, gossamers and morning dew, and sent them off, flake by flake, floating in the air, to give light summer showers. Sometimes she would blow up black thunder-storms and send down drenching rains to swell the streams and sweep everything away. All these storms coming from the west appeared to originate in the mountains. The Indians also told of the imps that haunted their dells, luring the hunters to places of peril. When the Dutch colonists came along, they sent expeditions into the mountains, searching for gold and silver, but chiefly found wildcats, causing them to be named the Kaatsbergs, and from this their present title has come to be, in time, the Kaatskills or the Catskills. These attractive mountains are a group of the Alleghenies, having spurs extending northwest and west, at right angles to the general trend of the range, thus giving them quite a different form from that usual in the Allegheny ridges. They assume also more of the abrupt and rocky character of the Alpine peaks, and instead of the usual folds or fragments of arches commonly seen elsewhere, the Catskill crags are masses of piled-up strata in the original horizontal position. They have a most precipitous declivity facing the east towards the river valley. Deep ravines, which the Dutch called "Cloves," are cut into them by the mountain torrents, descending in places in beautiful cascades, sometimes for hundreds of feet. This aggregation of rocky cliffs and rounded peaks, and the intersecting gorges and smiling verdant valleys, have become a great resort for the summer pleasure-seeker, with myriads of hotels and boarding-places, where it is said that eighty to a hundred thousand people will go in the season. Their eastern verge is drained by the Hudson, while the many brooks and kills flowing out to the westward are gathered into the two branches that form the Delaware River.