696 



THE GEOLOGY OF MINNESOTA. 



Till, effect of glacial lakes on its deposition, 



408, 442, 545, 622, 659, 661. 

 red (chiefly in eastern Minnesota), 126-7, 



627, 658. 

 varieties, 126, 440-2, 461, 465, 512, 529, 530, 



543, 582, 607, 659, 661. 

 yellow till below blue till, 529. 

 red till below the blue, 659. 



Timber, 136-140, 636; Houston county, 214; 

 Winona, 247; Fillmore, 278; Olmsted, 831; 

 Mower, 350; Dodge, 369; Freeborn, 378-9, 

 381; Steele, 395-7; Waseca, 409; Blue Earth, 

 421; Faribault, 456; Watonwan and Martin, 

 476; Cottonwood and Jackson, 498; Murray 

 and Nobles, 525; Pipestone and Rock, 537; 

 Brown and Bed wood, 567; Yellow Medicine, 

 Lyon and Lincoln, 596; Big Stone and Lac 

 qui Parle, 617; Le Sueur, 636; Rice, 653, 672. 



Topography, 120-5, 406; Houston county, 208; 

 Winona, 238; Fillmore, 270; Olmsted, 328; 

 Mower, 348; Dodge, 368; Freeborn, 376; 

 Steele, 395; Waseca, 405; Blue Earth, 416; 

 Faribault, 455; Watonwan and Martin, 473; 

 Cottonwood and Jackson, 494; Murray and 

 Nobles, 519; Pipestone and Rock, 534; Brown 

 and Redwood, 563; Yellow Medicine, Lyon 

 and Lincoln, 591; Big Stone and Lac qui 

 Parle, 614; Le Sueur, 633; Rice, 651. 



Tourmaline, 39. 



Traditions of the Indians, 64, 69, 546. 



Trap-rock, 32, 33, 97, 100, 104, 500. 



Travertine, 327, 513, 550, 587, 610, 611, 620. 



Trees, 138-9, 636; Houston county, 214; Wino- 

 na, 247; Fillmore, 278; Olmsted, 331 ; Mower, 

 351; Dodge, 369; Freeborn, 381; Steele, 397; 

 Waseca, 410; Blue Earth, 421; Faribault, 

 457; Watonwan and Martin, 476; Cotton- 

 wood and Jackson, 499; Murray and Nobles, 

 525; Pipestone and Rock, 537; Brown and 

 Redwood, 568; Yellow Medicine, Lyon and 

 Lincoln, 596; Big Stone and Lac qui Parle, 

 617; Le Sueur, 636; Rice, 653. 



Tree cultivation, 331, 382, 525. 



Tree, supposed fossil, 598. 



Trenton formations, 85, 102; as building stones, 



167-176; Houston county, 218; Winona, 250; 



Fillmore, 289-301 ; Olmsted, 339-343; Mower, 



362; Dodge, 370; Steele, 397, 399; Rice, 655. 



See Lower and Upper Trenton, Green shales. 



Galena and Hudson River formations, 



and Maquoketa shales. 



Triassic (?) at New Ulm, 98. 



Trilobites, 83, 343, 637, 638. 



Trout, 78. 



Tuliby, 78. 



Turbinolopsis bina, 79. 



Turkeys, 21. 

 Turritella, 79. 



Upper Magnesian limestones, 83. 

 Upper Silurian, 83, 302, 35"6. [362. 



Upper Trenton limestone and shales, 289, 293, 

 Utica slate, 289. 



Valleys. See Erosion and Water-courses. 

 Veins, calcareous, in till, 442, 640. 

 of quartz, 597, 598. 



Wabash ridge(terminal moraine), Ohio, 463f .n. 

 Waconia (sixth) moraine, 461 f . n., 606, 621 ,641 . 

 AVarren, river, 101, 134, 615, 622. 

 Waseca county, chapter on, 404. 

 Situation and area, 404. 

 Surface features, 404. 

 Natural drainage, 404. 

 Lakes, 405. 

 Topography, 405. 

 Terminal moraines, 406. 

 Glacial lake, 408. 

 Elevations, 408. 

 Soil and timber, 409. 

 Geological structure, 410. 

 St. Peter and Cretaceous formations, 410. 

 Drift, 411. Wells, 411. 

 Material resources, 413. 

 Lime and brick, 413. 

 Springs, 414. 



Aboriginal mounds, 414 (also 673). 

 Water in the state, 120, 130-6; area, 132. 



Also see Lakes and Springs. 

 Water-courses, glacial, deserted, 509, 592, 606, 



624, 626, 642, 662. Also see Interglacial. 

 Water-powers: Houston county, 208; Winona, 

 237; Fillmore, 268; Olmsted, 327; Mower, 

 348; Dodge, 368; Freeborn, 376; Steele, 394; 

 Waseca, 413; Blue Earth, 445; Faribault, 

 467; Watonwan, 489; Martin, 489; Cotton- 

 wood, 513; Jackson, 513; Murray, 531; Rock, 

 534; Brown, 586; Redwood, 587; Yellow 

 Medicine, 611; Lyon, 611; Big Stone, 630; 

 Lac qui Parle, 630; Le Sueur, 646; Rice, 650. 

 Water-worn boulders, 583. 



ledges, 61, 226, 434, 583, 597, 664. [472. 



AVatonwan and Martin counties, chapter on, 

 Situation and area, 472. 

 Surface features, 472. 

 Natural drainage, 472. 

 Lakes, 473, 479. 

 Topography, 473. 

 Elevations, 474. . 



Soil and timber, 475. 

 Geological structure, 476. 



