![A topographic map of the western United States. Boundaries of tectonic... | Download Scientific Diagram A topographic map of the western United States. Boundaries of tectonic... | Download Scientific Diagram](https://www.researchgate.net/publication/280307391/figure/fig1/AS:294099636371456@1447130225324/A-topographic-map-of-the-western-United-States-Boundaries-of-tectonic-provinces-red.png)
A topographic map of the western United States. Boundaries of tectonic... | Download Scientific Diagram
![Map of the United States west of the Mississippi showing the routes to Pike's Peak, overland mail route to California and Pacific rail road surveys. To which are added the new state Map of the United States west of the Mississippi showing the routes to Pike's Peak, overland mail route to California and Pacific rail road surveys. To which are added the new state](http://tile.loc.gov/image-services/iiif/service:gmd:gmd405:g4050:g4050:rr001760/full/pct:25/0/default.jpg)
Map of the United States west of the Mississippi showing the routes to Pike's Peak, overland mail route to California and Pacific rail road surveys. To which are added the new state
![Preliminary Integrated Geologic Map Databases of the United States: The Western States: California, Nevada, Arizona, Washington, Idaho, Utah (OFR 2005-1305) Preliminary Integrated Geologic Map Databases of the United States: The Western States: California, Nevada, Arizona, Washington, Idaho, Utah (OFR 2005-1305)](https://pubs.usgs.gov/of/2005/1305/images/west_cover_graphic_final.jpg)