But today there was something else he wanted to share with his son.

He had introduced the subject already, once or twice, during their journey. As they started up the Hudson, he had looked back, past the stately cliffs of the Palisades to where, in the distance, New York harbor was a haze of golden light, and remarked: “It’s a fine sight, isn’t it, Frank?” But it had been hard to tell what the boy was thinking. As they came to West Point, and stared at the splendor of the Hudson Valley as it wound its way northward—a sight that always brought a thrill of romance to his own heart—Weston had again called the scene to his son’s attention. “Mighty fine, Pa,” Frank had said, but only, his father suspected, because he reckoned it was expected of him. As they’d taken the long road westward, passed lakes and mountains, seen magnificent panoramas and gorgeous sunsets, Weston had gently pointed them out, and let the boy take them in.

For as well as the continent’s scope and wealth, it was America’s spiritual lineaments he wanted to show his son. The vast splendor of the land, the magnificence of its freedom, the glory of nature and its testimony to the sublime. The Old World had nothing better than this—equally picturesque perhaps, but never so grand. Here in the beauty of the Hudson Valley, it stretched to the plains and deserts and soaring mountains of the west: nature, untrameled, under the hand of God. America, as seen by its native sons, for countless centuries before his own ancestors came. He wanted to share it with his son, and see its mighty wonder thrill the boy’s heart.

That’s why he had brought him here today. If the stupendous sight they were about to see didn’t stir the boy, then he didn’t know what would.

“Lake Ontario is higher than Lake Erie,” he said quietly to Frank, as they came toward the end of the path, “so as the water flows through the channel that leads between them, it comes to a place where it has to drop. It’s a pretty big drop, as you’ll see.”

Frank had enjoyed preparing for the journey. Back in the city, he’d been interested, when his father had demonstrated the purpose of the canal on the map. Frank liked maps. In his library, his father also had a big framed print of the commissioners’ plan for New York City. It showed a long, perfect grid of streets. The city had already advanced several miles from its old limits under the British, but the plan was that one day the grid should run all the way up to Harlem. Frank loved the simple, harsh geometry of the plan, and the fact that it was about the future, not the past.