Xiv ILLUSTKATIONS. 



Pagfe 

 Plate XXVIII. Map of the western shores of Lake Agassiz from the vicinity of Wheatland 



north to Portlanil and May ville 322 



XXIX. Map of the western shores of Lake Agassiz and of the Ellc Valley delta, in 



Grand Forks County and parts of adjoining counties 334 



XXX. Map of the western shores of Lake Agassiz and of the Pembina delta, from 



Park Eiver north to the international boundary 354 



XXXI. Map of the western shores of Lake Agassiz from Morden and Thornhill north 



to the Assiuiboine River 364 



XXXII. Map of the western shores of Lake Agassiz, in the vicinity of the C.inadiau 



Pacific Railway and north to Orange Ridge 368 



XXXIII. Map of the delta of the Assiuiboine River 370 



XXXIV. Map of the southern portiou of Lake Agassiz, showing its extent in the lower 



Campbell stage 408 



XXXV. Map of the southern portion of Lake Agassiz, showing its extent in the lower 



Blanchard stage 446 



XXXVI. Map of the southern portion of Lake Agassiz, showing its extent in the Glad- 

 stone stage 4G2 



XXXVII. Map showing the distribution and depths of artesian wells in the Red River 



Valley 523 



XXXVIII. Map of the southern portion of Lake Agassiz, showing areas of forest and 



prairie 604 



Fig. 1. Order of sections in townships of the United States and of Manitoba 11 



2. Section across the Red River Valley on the latitude of Breckenridge and Wahpeton. .. 22 



3. Section across the Red River Valley on the latitude of Moorhead and Fargo 23 



4. Section across the Red River Valley from Larimore and Grand Forks to Maple Lake.. 23 



5. Section across the Red River Valley on the international boundary 24 



6. Typical section across a beach ridge of Lake Agassiz 26 



7. Eroded terrace marking the shore of Lake Agassiz 26 



8. Section across the Coteau des Prairies 38 



9. Map of Birds Hill and its vicinity 184 



10. Section of Birds Hill 185 



11. Section across the delta of the Buffalo River 290 



12. Section across thedeltaoftheSandHill River 298 



13. Section across the delta of the Sheyenne River 316 



14. Section across the delta of the Elk Valley 334 



15. Section across the delta of the Pembina River 358 



16. Section across the delta of the Assiniboine River 373 



17. Profile of the Campbell escarpment in section 6, Duudee, N. Dak 419 



18. Profile of the Campbell escarpment 1 mile south of Mountain, N. Dak 420 



19. Section across the Campbell embankment, in sections 20 aud 21, T. 161, R. 55, N. Dak 421 



20. Profile across beaches at and near Barnesville, Minn 429 



21. Section of the Campbell and McCauley ville beaches, in sections 33 aud 34, Liberty, Minn. 431 



22. Profile across beaches on the north line of Onstead aud Godfrey, Minn., west of Maple 



Lake 432 



23. Profile across beaches at and near Wheatland, N. Dak 435 



