Mountain Branch is a route of the Santa Fe Trail that leads to Bent’s New Fort, but in Lizzy Enders’s journey it matters as much for the family history and meeting it promises as for the miles it would have taken to travel. Elinora wants to follow it; Mr. Enders instead chooses the shorter Cimarron Cutoff, and Lizzy suspects his decision is also a refusal to see her Uncle William.

Route and Family Connections

Mountain Branch connects the journey west with Bent’s New Fort, which Uncle William largely ran. The fort was more than a distant stop to Lizzy: Uncle William’s home had been in Independence, where her mother, Mama, managed the household in his absence. His returns from Fort Bent brought excitement, visitors, and gifts—including Ben, Lizzy’s pony. The route therefore points toward a branch of Lizzy’s family life that is bound to adventure and affection, but increasingly beyond her reach.

That connection is also a reminder of the family she barely knows. Mama belonged to the consequential Bent family of Independence; her father had been a fur trapper who became wealthy and had three Indigenous wives. Lizzy remembers meeting her Blackfoot grandmother, Adalina, and reflects that she has Cheyenne and Blackfoot cousins she does not know. Mountain Branch thus carries the possibility of seeing a place and the people associated with her mother’s family, not merely of visiting a fort.

The Route Not Taken

Elinora wants to travel Mountain Branch to see Bent’s New Fort and its trappers, Indigenous people, and military men. Mr. Enders refuses, giving the practical reason that the Cimarron Cutoff is one hundred miles shorter. Lizzy suspects another reason: he does not want to see Uncle William. The account presents this as her interpretation, not as a confirmed explanation, leaving the shorter route both a logistical choice and a sign of family avoidance.

The decision belongs to a journey already marked by difficult distance and unequal treatment. The trip had lasted fifty days by the time Mama died, and the travelers still had farther to go. They could have taken a train as far as southeastern Colorado, the furthest point the railroad reached, but Bishop Jean Baptiste Lamy wanted his grandniece to experience travel on the Santa Fe Trail before railroads displaced it. Against that deliberate passage along the trail, the rejection of Mountain Branch narrows which part of the region—and which part of Lizzy’s family history—she will see.

Memory and the Wider Story

Mountain Branch remains significant in Lizzy’s imagination after the party passes it by. Later, in conversation with Mrs. Lacey, Lizzy hears that her grandfather had only just begun building the new Fort Bent when they came through. Mrs. Lacey says she had always wanted to see it; asked what she herself would do, Lizzy answers that she would join Jesse James. The exchange turns the fort and route into a shared focus for longing and adventurous possibility, even as their imagined futures differ.

The route also provides a counterpoint to the story’s later uncertainty about marvels and belief. The novel’s staircase legend concerns the Chapel of Loretto in Santa Fe, where a mysterious carpenter completes a staircase after the choir loft proves inaccessible by a conventional one. Lizzy does not accept the nuns’ conclusion that the carpenter was Saint Joseph, though the carpenter’s kindness and the blind cat’s recovery leave room for doubt. Mountain Branch does not resolve that question; it belongs to the grounded geography of travel, family, and missed meetings that frames Lizzy’s passage through New Mexico.