Lonesome Dove, Volume 1 by Larry McMurtry

NORTH OF SAN ANTONIO the country finally began to open up, to the relief of everyone. Two weeks of mesquite had tried everyone's patience. Gradually the mesquite thinned and the country became less heavily wooded. The grass was better and the cattle easier to handle. They grazed their way north so slowly most days that Newt felt it would take forever just to get out of Texas, much less make it to Montana.

He still worked the drags; as the grass improved the work was a little less dusty. He mainly rode along with the Rainey boys, discussing things they might see up the trail. A major topic of speculation was whether the Indians had actually been whipped or not.