IRRIGABLE LANDS OF THE SALT LAKE DRAINAGE SYSTEM. 121 
the Ogden and Weber had been measured in September, as were the other 
streams, their volumes would probably have been found less than in 
October; and this consideration appears to throw the balance of evidence 
against the competence of the rivers to water the contiguous lands. 
But if their incompetence shall be proved, it does not follow that the 
lands must go dry. The Bear at the north and the Jordan at the south 
have each a great volume of surplus water, and either supply can be led 
without serious engineering difficulty to the lower levels of the delta of the 
Weber. 
In the following table are summed the agricultural resources of the 
Weber drainage basin : 
| Square miles— 
Tracts. a A = = 
ultivated . 
| in 1877. Cultivable. 
amasgvbrairre (OLUDOL GOLO)ic asa acice and oe cnancccane cascecndsccoaucanctsniscescsinenosstecsewcuee aif 3.0 
Peoa to Hennefer, inclusive Bat ba 8.5 9.0 
22Y wd Ee VL a ee ee a ACS AGT ORE OOOO fan reece OS CISer eer ee | 3.2 3. 2 
| 
PRU Th G0 Veiner Sea a octal p orec aaa a Raa ars eer ote aera eng n ae oete o etnn ata eas = rarerne ee ee | eae 2. 0 
Echo Creek 3 mat 
Croydonyencss see ceesecn as « 4 25 
PRVOLLD Gua ViHLLO Vice pinesi st oa clot ieishne cee futclnre tet) e aiarniemre in. anrainstatsiais geranin eteg ae sana inisioles a eer taatme cy 5 5 
| Morgan Valley | 6.0 6.9 
Ogden ay alloy. >= cccccecen> =o Pee eds ois Thebes athe sack seeds eee ores oees eee seeaceeeeee ees) 4.1 8.0 
[PD Glta Plain tse os ete-cc sts oka seesicad ss aoc Peele Saar ac cseaNs ceeds caseesnasascasuosterseeciewcees | - 91.0 219.0 
jee 
Ota les ae see oes EAC anno COR OCELE BOE a CLERIC See er eee rine SO conor eerie | 115.2 253. 0 
The estimate of 219 miles of cultivable land on the Delta Plain 
includes 15 miles that will probably never be irrigated, but may neverthe- 
less be farmed. 
The total area of the Weber basin (including the whole plain from 
Bonneville to Centerville, and excluding the main body of Kamas Prairie) 
is 2,450 square miles; 4} per cent. of the area is now under cultivation, 
and 104 per cent. is susceptible of cultivation. 
The Jordan River is the outlet of Utah Lake, and runs northward, 
entering Great Salt Lake at its southeastern angle. On the right it receives 
a number of large tributaries from the Wasatch Range. The largest trib- 
utary of Utah Lake is the Provo River, which rises in the Uinta Mountains 
close to the heads of the Weber and Bear. 
From the mouth of its mountain canon the Provo enters Kamas 
Prairie, and it hugs the south margin of the plain just as the Weber hugs 
16AR 
