Katsuragawa Valley

…The river originates near Momoi Pass in Kyoto Prefecture, and its main stream flows almost in a straight line north along the Hanaori Fault between the Hira Mountains and the Tanba Highlands. It joins with tributaries such as the Harihata River, Kita River, and Aso River, turns east near the market in Kutsuki Village, and forms a wide delta before flowing into the west shore of Lake Biwa. The upper reaches of the river are called the Kuzu River Valley in the south and the Kutsuki Valley in the north. There are cliffs on both sides, and there is little arable land, so forestry is prominent. In the past, timber was collected by rafting at the mouth of the river at Minami-Funagi in Azumigawa Town. …

*Some of the terminology that refers to "Katsurakawa Valley" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…京都府百井峠付近に源を発し，主流は比良（ひら）山地と丹波高地との間の花折断層をほぼ直線的に北流して，針畑川，北川，麻生川などの支流を合わせ，朽木村市場付近で東に転じ，広い三角州を形成して琵琶湖西岸に注ぐ。上流部は，南は葛川谷，北は朽木谷とよばれ，両岸ともに断崖が迫り，耕地が少なく，林業が卓越している。木材は古くはいかだ流しで河口の安曇川町南舟木に集められた。…

※「葛川谷」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報