To Start You Thinking -
1) Click on the text in the map so that you can read it. Describe the location and the pattern of the land that was being offered for sale by the
Burlington & Missouri River Railroad.
2) Click on the map itself to enlarge it. The Platte River had been the traditional route through Nebraska along the Oregon Trail. Where was the land being offered for sale in relation to the Platte? Why might this cause you to doubt the claim that these were "some of the Finest Lands in the West?"