What is the setting of The Tie That Binds: A Novel by Kent Haruf?

The setting is Holt, Colorado, in a period ranging from before 1900 to sometime in the 1970s. Holt does not exist in reality, but the description of the town, both during the days of Colorado homesteads and the 1960s when the story is reaching its climax, are typical of small towns in that area and believable. There are sufficient details to make the story believable. For example, the Goodnough's home is described as having been built by Roy's own hands soon after their arrival in Colorado. Then, after Lyman's return, Lyman and Edith work on some updates for the house. While those are not described in great detail, there are sufficient items to make the settings real.