Winston of the Prairie by Harold Bindloss

Courthorne rode away next morning, and some weeks had passed when Maud Barrington came upon Winston sitting beside his mower in a sloo. He did not at first see her, for the rattle of the machines in a neighboring hollow drowned the muffled beat of hoofs, and the girl, reining her horse in, looked down on him. The man was sitting very still, which was unusual for him, hammer in his hand, gazing straight before him, as though he could see something beyond the shimmering heat that danced along the rim of the prairie.

Summer had come, and the grass, which grew scarcely ankle-deep on the great levels, was once more white and dry, but in the hollows that had held the melting snow it stood waist-high, scented with peppermint, harsh and wiry, and Winston had set out with every man he had to harvest it. Already a line of loaded wagons crawled slowly across the prairie, and men and horses moved half-seen amid the dust that whirled about another sloo. Out of it came the trampling of hoofs and the musical tinkle of steel.