Also at =12 m.= is WALHALLA STATE PARK (L), on the eastern slope of the Pembina Mountains. The wooded 5-acre tract contains the SITE OF ALEXANDER HENRY, JR.'S TRADING POST, a temporary depot established in 1801, one of the first posts in present North Dakota; also the KITTSON HOUSE, erected in 1851-52 as a trading post and warehouse under the supervision of Norman Kittson, who became the first postmaster in North Dakota. This building was originally built nearby and was moved to the park in 1915. Often locally designated as Old Settlers' Park, the area is the scene of the annual meeting and picnic of the Pembina County Old Settlers' Association (_July_). Left from the park on a winding graveled road to the PROTESTANT CEMETERY, =0.4 m.=, where are buried two missionaries killed by Indians in the early 1850's and hence known as the Martyrs of St. Joe. At =1.4 m.=, at the summit of the mountain, LOOKOUT POINT affords a fine view of the deep Pembina River valley below and the Red River Valley farming area, dotted with villages and farmhouses, which stretches away in the distance. The point is the property of several Masonic lodges in this area, and they hold an annual picnic here. At =15 m.= on ND 32 is the junction with ND 55, on which the route continues. At =22 m.= is the junction with a graveled road. After crossing the Pembina River, the highway at =25 m.= enters LEROY (890 alt., 100 pop.). The inhabitants of the town are chiefly metis and their log cabins are scattered in the timber along the river. From the time the Hudson's Bay Co. began operations in 1670, French Canadians migrated westward, intermarrying with Chippewa women. Their children were known as metis or mixed-bloods. Inheriting the characteristics of both the Indian and the French-Canadian woodsman, the metis became adept voyageurs, and their part in the early fur trade of the Middlewest was very important. They were excellent hunters, trappers, and couriers, and it is said they loved the "musical" sound of the Red River oxcarts which, with their unlubricated wooden axles and hubs screeching across the plains, brought furs E. from the trading posts. When this region began to be settled the metis were the first mail carriers, since their stamina and knowledge of the frontier made them "brave and bold, and the most reliable men to be had."