REPORT. 

 I. 



SUMMARY STATEMENT. 



The greater portion of the time during the year has been given 

 both by Mr. Upham and myself to the final revision of manuscript 

 for the printers, and the reading of proofs, the preparation of maps, 

 plates and other illustrations, and the proofs of the same, intended 

 for the final report. At the present time the following county 

 maps have been drawn, lithographed and printed, showing the 

 geology and surface features, and the lines of equal elevation above 

 the sea, viz : Houston, Winona, Fillmore, Olmsted, Mower, 

 Dodge, Freeborn, Waseca, Steele, Blue Earth, Faribault, Waton- 

 vran, Martin, Cottonwood, Jackson, Murray, Nobles, Pipestone, 

 Rock, Lincoln, Lyon, Yellovr Medicine, Redwood, Brown, Nicollet, 

 Le Sueur, Wabasha, Scott^ Carver, Wright, Lac qui Parle and 

 Big Stone. The counties of Groodhue, Rice and Dakota, and several 

 others, are in course of preparation, and sufficient examination has 

 been made in nearly all the state as far north as Braiuerd, for 

 mapping and reporting in the same manner. In the northern half 

 of the state, *also, much information has been obtained. Considera- 

 ble more work, however, must be done in that, portion north of the 

 parallel uf Brainerd. where the difficulties of travel increase, and at 

 the same time the geology becomes more difficult and more interest- 

 ing. Should the survey continue according to the present design, 



