At Valley St. and 4th Ave. SE. is a junction with US 2 (_see Tour 6_), which unites with US 52 to =150 m.= At 4th Ave. and 2nd St. SW. is the junction with US 83 (_see Tour 3_). Left of the junction at =150 m.= is a large tourist camp. BURLINGTON, =152 m.= (1,590 alt., 150 pop.), named for Burlington, Iowa, under the North Dakota Rural Rehabilitation Corporation became the scene of the State's first SUBSISTENCE HOMESTEAD PROJECT. Here, in the wooded valley at the confluence of the Mouse and the Des Lacs Rivers, a model village of comfortable homes arose (1937) to replace the former dwellings of the miners who have part time employment in the lignite mines of the vicinity. When completed the project will provide homes and irrigated garden-land for more than 50 families. The cost to each owner, including land, house, barn, garage, and chicken and hog houses, will be approximately $3,500. A concrete dam and bowl spillway on the Des Lacs River will irrigate more than half the 600 acres included in the project. A camp fire unwittingly built upon an outcropping of lignite at Burlington in the spring of 1883 is credited with first having acquainted pioneers here with the possibilities of developing the fuel on a large scale. Three men camped at the fork of the Mouse and Des Lacs Rivers were surprised one morning to find their camp fire of the previous night still burning. Upon investigation they learned that their wood fire had ignited a blackish mineral--lignite--in the earth beneath it. All lignite mines in the Burlington vicinity are underground (_open on application at mine office in Burlington_). Northwest of Burlington the route follows the Des Lacs River valley to FOXHOLM, =163 m.= (1,657 alt., 200 pop.), named for Foxholm, England, and CARPIO, =171.5 m.= (1,696 alt., 344 pop.), which touches the hills on both sides of the narrow valley. One story has it that Carpio was named by the wife of one of the railroad officials; another that the name was suggested by the fact that the first post office was a freight car on which was posted the sign "P. O." Right from Carpio on a graveled county road to the UPPER SOURIS MIGRATORY WATERFOWL PROJECT, =7 m.=, one of the largest of its type being undertaken in North Dakota by the U. S. Biological Survey. Here a marshland along the Mouse River has been purchased and a large dam constructed to impound a lake 26 m. long. A series of smaller dams farther down the river will control the flood waters of the Souris and will aid in restoring the marshes to suitable breeding and nesting grounds for migratory waterfowl. The low, chalky white, red-roofed buildings E. of the dam are PROJECT HEADQUARTERS. Left from the dam on a gravel road to the CP RANCH, =14 m.=, which maintains one of the few buffalo herds in the Northwest. Thirty-five shaggy-coated bison range in a 700-acre pasture, appearing at the ranch buildings twice daily for water. A large herd of Hereford cattle is also kept here.