The Mogami River最上川
1Waiting for fair weather at Ōishida
もかみ川のらんと大石田と云所に日和を待こゝに古き俳諧のたねこぼれて忘ぬ花の昔をしたひ蘆角一聲の心をやはらげ此道にさぐり足して新古二道にふみまどふといへども道しるべする人〳〵なければとわりなき一卷をのこしぬ此度の風流こゝにいたれり
Meaning to go down the Mogami River, I waited for fair weather at a place called Ōishida. Here the seed of the old haikai had fallen, and they long for the flowers of a past they cannot forget, and soften their hearts with one note of the reed pipe. They said that on this way they go feeling for the ground with their feet, and lose themselves between the two roads, the new and the old, and that there is no one to lead them. So there was nothing for it but to leave a volume behind. The elegance of this journey has reached even here.
Interlinear notes 1
古きノ二字一本ニナシ
Another text does not have the two characters 「古き」.
2Gathering the summer rains, and swift
もかみ川はみちのくより出で山形をみなかみとすこでん隼などいふおそろしき難所有り板敷山の北を流てはては酒田の海に入る左右山覆ひしげみの中に船を下す是にいねつみたるをやいな舟といふならし白糸の瀧は靑葉のひま〳〵に落て仙人堂岸に溢て立水漲て舟あやぶし 五月雨をあつめて早し最上川
The Mogami River comes out of Michinoku, and Yamagata is its upper water. There are fearful rapids with names like Goten and Hayabusa. It flows north of Mount Itajiki and at last enters the sea at Sakata. Mountains cover it to left and right, and the boat goes down through the thick green. A boat loaded with rice like this is called an inabune, a rice boat.
Shiraito Falls comes down through the gaps in the green leaves, and the Senindō stands close against the bank. The water was high, and the boat was in danger.
Gathering the summer rains — / and how swift it is, the Mogami River
Interlinear notes 1
一本涼しトアリ
Another text has 「涼し」.