Building across Kansas and eastern Colorado was simple, with few natural obstacles (certainly fewer than the railroad was to encounter further west), but the railroad found it almost economically impossible because of the sparse population. It set up real estate offices in the area and promoted settlement across Kansas on the land that was granted to it by Congress in 1863. It offered discounted fares to anyone who traveled west to inspect land; if the land was purchased, the railroad applied the passenger's fare toward the price of the land.