272 The American Geologist. November, 1003. 
Section iv. /;/ Seven Mile Hill canyon, five miles southeast of 
Fort Apache, Arizona. 
iter nary: feet 
i. Basalt 200 
2. Volcanic ashes 10 
3. Strata of mostly unlithified sands and clays 40 
4. Shale, light colored, sandy. .'. 4 
Tertiary: 
5. Conglomerate rock, the cement being volcanic ash. The pebbles 
and cobblestones of this series are : quartzytes, granite, andesyte 
rhyolyte, limestone of the Palaeozoic era, etc. (No cobblestone 
or pebble of the basaltic type was found in this conglomerate) . 60 
6. Strata of partly lithified coarse grained, reddish to light 
brown sandstone, composed of angular and rounded grains of 
granite, rhyolyte, etc. In this series the rhyolyte-trachytc par- 
ticles predominate 200 
Carboniferous: 
7. Red gypsiferous shales, with sandstone and limestone 800 
Total 1314 
Section v. East zvall of Cherry creek canyon, Arizona, seven miles 
north of Salt river, near Mr. James Hinton's house. 
Tertiary : feet 
1. Light brown to dark brown rhyolyte, capping buttes. This 
rhyolyte is continuous at the base of the butte with that which 
underlies the Tertiary formation here 30 
2. Conglomerate rock, the cement being tufa 80 
3. Tufa agglomerate -. . 20 
4. Light gray sandstone 10 
5. Rhyolyte 30 
6. Gray sandstone and conglomerate 100 
7. Fine grained, gray to brown sandstone, composed of ground 
up Archaean and Paleozoic rocks, granite, rhyolytes, diabases, 
etc 40 
Total 210 
Section vi. South of White river, three miles zvest of Ft. Apache. 
Quaternary: feet 
1. Basalt 200 
2. Unlithified volcanic ashes 10 
3. Loose strata of slightly lithified clays and sands 40 
Carboniferous: 
4. Red gypsiferous shales with sandstone and limestone 1000 
Total 1250 
Section vii. On the Government trail from Ellison's to Canyon 
creek. 
Quaternary: feet 
1. Adobe clay 8 
2. Loose cobble stones and pebbles 1 
