It's roughly fifty to sixty miles and really rough, especially in the winter / spring as the terrain between Bonanza, utah ( north of the White river and Dragon) and Vernal, Utah was a vast desert of decomposed shale - turning in to a sticky slime that made even the fatest tired wagon slow to a crawl. It was also barren, and hard to make it across. The Uintah Railway built and maintained the telegraph line from Dragon to Vernal and to Ft. Duchesne, and one winter, the poles had to be replaced with iron posts as many of the frieghters were not making it across the desert in one day, and had to stop for the night......... well, what are you going to burn in a camp fire...... the only wood in fifty miles, so down came the lines. Also it required a ferry crossing of the Green river for many years untill the bridge was installed at Jensen.