Gribblenation

Marsh Creek Road is an approximately twenty-one-mile rural highway in the Diablo Range of Contra Costa County, California.  The roadway begins in the city of Clayton near Mount Diablo and follows the namesake Marsh Creek to the outskirts of Discovery Bay.  Since 2012 a portion of Marsh Creek Road between Vasco Road and Byron Road has been signed as part of California State Route 4.  The highway is named after Alta California settler John Marsh who settled in the area during 1838.   Part 1; the history of Marsh Creek Road Marsh Creek and the namesake road are named after Alta California settler John Marsh.  John Marsh would acquire Rancho Los Meganos from Jose Noriega during 1838.  John Marsh would construct his home along the creek that would later bear his name after California became an American state.   In 1857 John Clayton would plot a town north of Mount Diablo bearing his last name.  Clayton would begin to boom with the rise of coal mining in eastern Contra County.  The community