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FIGURE 9. Historical diagram of Pennsylvania...

10. Historical diagram of Virginia.
11. Historical diagram of Georgia...-
12. Historical diagram of Mississippi...
13. Historical diagram of Louisiana.
14. Historical diagram of Texas.--
15. Historical diagram of Arkansas..
16. Historical diagram of Indiana..
17. Historical diagram of Michigan...
18. Historical diagram of Missouri.----
19. Historical diagram of North Dakota and South Dakota.
20. Historical diagram of Nebraska..
21. Historical diagram of Oklahoma..
22. Historical diagram of New Mexico...
23. Marks on the tablet at the southeast corner of New Mexico.--
24. Historical diagram of Utah...
25. Historical diagram of Idaho..
26. Historical diagram of Washington...

Page 119 140 155 165 167 170 179 192 196 201 209 213 218 227 230 232 239 240

FOREWORD

The first United States Geological Survey record setting forth the history of the boundaries of the United States and the several States and Territories was prepared by Henry Gannett, assisted by Franklin G. Butterfield, and was published as Bulletin 13 of the Geological Survey in 1885. The second edition, revised and enlarged by Henry Gannett, was published as Bulletin 171 in 1900. The third edition, also revised by Henry Gannett, was published as Bulletin 226 in 1904. A reprint of this edition with minor corrections was issued in 1906. A revision and enlargement of Bulletin 226 which included additional matter incidentally connected with boundaries was prepared by Edward M. Douglas and issued in 1923 as Bulletin 689. The present bulletin is a revision and enlargement of the 1923 edition.

It is the desire of the Geological Survey to make this publication a complete record, and therefore suggestions for the addition of any germane material will be welcomed.

VIL

[graphic]

U.S. GEOLOGICAL SURVEY

BULLETIN 817

MOUNT McKINLEY, ALASKA The highest peak in North America; altitude 20,300 feet.

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