Geologic Units |
|
 |
Quaternary alluvial deposits |
 |
Quaternary surficial cover, fluveolian cover on Snake River Plain, alluvial fans (Snake River Group) |
 |
Lake Bonneville deposits |
 |
Pliocene and Upper Miocene stream and lake deposits (Salt Lake Formation, Starlight Formation, Idaho Group) |
 |
Silurian sedimentary rocks |
 |
Ordovician sedimentary rocks |
 |
Cambrian sedimentary rocks |
 |
Ordovician, Cambrian, and Neoproterozoic sedimentary rocks, Bannock and Portneuf Ranges |
 |
Cambrian to Neoproterozoic Brigham Group |
| Map Key | |
 |
Geologic units with unit designation. |
 |
Normal Fault: certain; dashed where approximately located; dotted where concealed. |
 |
Thrust Fault: certain; dashed where approximately located; dotted where concealed. |
 |
Detachment Fault: certain; dashed where approximately located; dotted where concealed. |
 |
Interstate Route. |
 |
U.S. Route. |
 |
State Route. |
 |
Location of Rockwalk rock from the county. |
 |
Cities. |
 |
Feature location. |
Additional Reading
Rocks Rails and Trails: pages
Introduction to the Geology of South
& East Idaho
Introduction to Geologic Diagrams
Geologic cross sections
Relations between Geology, Topography
and Drainage Systems in Idaho
Drainage and mountain range map
for eastern Idaho
Table of Geologic Events in Southern
Idaho
Drainage Systems, Rails and
Trails
Geologic Provinces along the
Oregon Trail
Rocks of the Eastern Idaho Mountains
The Thrust Belt of Southeastern
Idaho
Views of Thrust Faults
Basin and Range Faulting
Lake Bonneville and its Flood
Disposal of Wastes at the Idaho
National Engineering & Environmental Laboratory
References on Idaho Geology
Section 3, History of Eastern
Idaho
Section 3, Chapter 8 -"Famous
Potatoes" Agriculture & Irrigation
Section 4, Chapter 14
-Cache Valley
Bear River Landslide Complex
Click here to see a correlation of geologic units, and the associated time scale.
Click here for a printable version of this map.
|
Click on the button below to search the IdahoGeologic
Survey's index of Geologic Maps
|
 |