Kansas include I-470 around Topeka, I-235 around Wichita, and I-670 in downtown Kansas City. I-435 is a beltway around the Kansas City metropolitan area while I-635 bypasses through Kansas City. U.S. Route 69 (US-69) travels south to north, from Oklahoma to Missouri. The highway passes through the eastern section of Kansas, traveling through Baxter Springs, Pittsburg, Frontenac, Fort Scott, Louisburg, and the Kansas City area. Kansas also has the country's third largest state highway system after Texas and California. This is because of the high number of counties and county seats (105) and their intertwining. In January 2004, the Kansas Department
Geology of Kansas Southern granite-rhyolite province dating to 1.35 to 1.48 Ga. Geology of Kansas The Geology of Kansas encompasses the geologic history of the US state of Kansas and the present-day rock and soil that is exposed there. Rock that crops out in Kansas was formed during the Phanerozoic eon, which consists of three geologic eras: the Paleozoic, Mesozoic and Cenozoic. Paleozoic rocks at the surface in Kansas are primarily from the Mississippian, Pennsylvanian and Permian periods. The oldest rocks at the surface in Kansas are Mississippian rocks that consist of limestones, shale, dolomite, chert, sandstones and siltstones. The Mississippian consisted of