Humphreys and Abbot's Report on the Mississippi River. 227 
The high water slope of the Arkansas is thus stated ; 
Distance ; Elevation) Fall 
Locality. above above per Authority. 
mouth. |sea level.| mile. 
Miles. | Fee Feet. 
ee Le ee, 1,514 | 10,000 0-00 |Captain Fremont. 
Mouth of Boiling-spring river, 1,364 4,880 | 3413 ” 
Mouth of Apishpa creek,  - 1,323 | 4,371 | 12-41 (Captain Gunnison, 
Near Bent’s fort, - -  - 1,289 | 3,672 | 20°56 e 
Near Fort Atkinson, -  - 1,095 | 2,881 | 6°91 : 
Grebtond, .' 6+. 992 | 1,658 | 653 |Major Emory. 
Near Fort Gibson, eS 642 560 | 3:14 
Near Fort Smith, - -_ - 522 418 | 1:18 |Lieutenant Whipple. 
Near Little Rock, - -  - 250 252 | 0-61 /Railroad levels. 
Dos Oe ee 0 162 | 0-36 [Railroad levels 
tween Forts Smith and Gibson. The White River drains the 
. St. Francis Basin.—This region, including an area of 10,500 
Sq. m., consists of the St. Francis bottom and its watershed. 
“By the former is understood the belt of swamp lands and low ridges 
lying between the Mississippi river and the line of high hills which ex- 
tends almost continuously from Cape Girardeau to Helena. me small 
Portions of this area do not drain into the St. Francis river, but, bein 
rey in character, the entire region is properly designated by a Pain| 
me, 
Waters of the Mississippi,” great efforts have 
Possible information about their real character. 
desired about the Missouri portion of these bottom lands. 
