Perthshire (122), the most beautiful and varied county in Scotland, occupies the whole of the Tay Valley and part of the Forth, and is bounded by nine other counties. The N. and W. are mountainous, with many rivers and lakes, and much of the finest scenery in Scotland; the Trossachs and Loch Katrine are world famed. In the E. is extensive woodland and the Carse of Gowrie, one of the most fertile of Scottish plains. Ben Lawers is the highest mountain, Loch Tay the largest lake. Much of the soil is good only for sheep farms, deer forests, and grouse moors; the county is visited annually by thousands of tourists and sportsmen.