Left on this road is LIGNITE, =1 m.= (1,979 alt., 217 pop.), which was to have been named Kincaid, for an agent of the G. N. Ry., but through an error of the town site company was given the name intended for the neighboring town, a lignite mining center, which was consequently named Kincaid. At =8 m.= BIG BUTTE (2,200 alt.), a large grassy hill, covers about two sections of land, rising more than 200 ft. above the surrounding prairie. At the foot of the butte was once a spring of excellent water, frequented by Indians passing along the old White Earth Trail from the Turtle Mountains to the Missouri River. Circles of stone and Indian mounds are found on the northern side of the butte. In early days there was a ranch with 300 head of horses near the spring, but the owner lost all his stock to smugglers. Somewhere in the vicinity of Big Butte may be the hiding place of $40,000. A story, not generally credited, relates that in the late 1870's a Hudson's Bay Co. paymaster, on his way to pay employees of the company at the several trading posts in the territory, was robbed of this amount near Estevan, Canada. The robber was apprehended in the neighborhood of Big Butte, but not before he had found a place to cache his loot. Taken to Portal, he died under torture while an attempt was being made to force his secret from him. On the tanned side of his fur coat was found a diagram believed to show the hiding place of the treasure, which has since been the object of many searches. The accidental unearthing of a stone bearing the inscription "1877" inspired fresh digging. At another time the Royal Mounted Police of Calgary are said to have sent men to the locality in an attempt to recover the money. So far, however, all efforts have proved unsuccessful. Some believe the treasure was found and taken away; others think it is still in the vicinity of Big Butte; and a few skeptics disdain the idea that it was ever buried here at all. At =268.5 m.= is the junction with a graveled road. Right on this road is COLUMBUS, =0.5 m.= (1,930 alt., 516 pop.), clumped together on the flat prairie. First settled in 1902, it was moved to the railroad in 1906 when the Soo Ry. was extended through this part of the State. The first postmaster, Columbus Larson, gave his Christian name to this town, and his surname to the next town W. At =269.5 m.= is a junction with ND 40, a graveled highway. Left on this highway =3 m.= to a junction with an improved road; R. here to the MONTANA-DAKOTA POWER PLANT, =2 m.=, in the heart of the lignite coal field. The plant was opened 1928, and today is a $300,000 enterprise, supplying electrical energy to the towns of northeastern Montana and northwestern North Dakota.