At =13 m.= on ND 14 the route crosses the Mouse or Souris River, remnant of Lake Souris. At =14.5 m.= are the headquarters of the refuge, where the ADMINISTRATION BUILDINGS are. The 100-foot observation tower is used in studying bird life (_open, children must be accompanied by adults_). UPHAM, =18 m.= (1,461 alt., 257 pop.), is believed to have been named by the G. N. Ry. town site company. Left from Upham at =22 m.= on an improved county road to the largest dam being constructed on the lower Souris Refuge, a retaining dike approximately 3 m. long. At =165.5 m.= the highway dips slightly and crosses the Souris River, here resembling a canal, and running almost bank full. At =175 m.= is a junction with US 83; between this point and =192 m.= the two roads coincide (_see Tour 3_). MOHALL, =202 m.= (1,646 alt., 676 pop.), seat of Renville County, was named for M. O. Hall, publisher of the first newspaper. Platted in 1903 as the terminus of the railroad, its growth for the first few months was rapid. The Renville County _Tribune_ of December 3 of that year said that the G. N. Ry. agent estimated that during the preceding week 125 carloads of material had been shipped into the new town, in addition to 175 cars lying on sidetracks along the line and billed for Mohall. Four tracks were crowded with cars and eight dray lines were kept busy transferring the material to the lumberyards and points of construction. One hundred and seventy-five carpenters were employed, and then the demand was only half met. At that time the place had nine grain buyers. Dick Grace, motion picture stunt flier, lived here for a time. A CCC CAMP with an enrollment of about 200 adjoins the town. At present (1938) its members are assigned to work on the Upper Souris Migratory Waterfowl Refuge (_see Tour 7_). At =205 m.= the route passes between two farms lighted by natural gas from wells drilled on the premises. Although natural gas in large quantities has been found in Montana, and a number of small wells have been opened in North Dakota, there has never been a sufficient amount in this State to form the basis for a permanent commercial enterprise. At =214 m.= the route leads down into the mile-wide Souris valley. The stream here is lined with box elder, elm, and small fruit trees. At =215 m.= is the junction with a graveled county road. Right on this road to the 480-acre MOUSE RIVER PARK (_boating_, _swimming_, _roller skating_, _golf_; _store_, _dining hall_, _auditorium_, cottages), =2 m.= At =229.5 m.= is a junction with US 52, a graveled highway, which unites with ND 5 between this point and =257 m.= (_see Tour 7_). At =258 m.= is the junction with a graveled county highway.