Lonesome Dove, Volume 2: Comanche Moon by Larry McMurtry

CALL FOUND GUS MCCRAE asleep by the river, under a bluff that looked familiar. Long before, when the two of them were young rangers, Augustus had stumbled off that very bluff one night and twisted his ankle badly when he hit. Then, because of Clara Forsythe, Gus had been too agitated to watch where he was going; now, an hour after sunup, he was snoring away and probably hung over because he pined for the same woman. In a boat, turning slowly in the middle of the river, an old man was fishing. An old man had been fishing the night Gus hurt his ankle-for all Call knew, it might even be the same old man, in the same boat. Years had worn off the calendar, but what had changed? The river still flowed, the old man still fished, and Augustus McCrae still pined for Clara.

"Get up, the Governor wants to see us," Call said, when he got back to where his friend was sleeping. Gus had stopped snoring; he was nestled comfortably against the riverbank with his hat over his eyes.