Question: About how many miles is the emigrant trail located in Folsom Lake State Recreation Area in Placer County , California ?

text: California Historical Landmarks in Placer County
Listings

List table of the properties and districts - listed on the California Historical Landmarks - within Placer County, California.
Landmark name Location City or town
404 Auburn Historic district 38°53′55″N 121°04′28″W / 38.898611°N 121.074444°W / 38.898611 ; -121.074444 ( Auburn ) Auburn
397 Dutch Flat Historic district 39°12′22″N 120°50′16″W / 39.206111°N 120.837778°W / 39.206111 ; -120.837778 ( Dutch Flat ) Dutch Flat
403 Emigrant Gap Emigrant Gap Vista Pt , Interstate 80 39°18′11″N 120°39′58″W / 39.303°N 120.666°W / 39.303 ; -120.666 ( Emigrant Gap ) Emigrant Gap
399 Foresthill Historic district 39°01′10″N 120°50′10″W / 39.019444°N 120.836111°W / 39.019444 ; -120.836111 ( Foresthill ) Foresthill
405 Gold Run Historic district 39°10′51″N 120°51′21″W / 39.180833°N 120.855833°W / 39.180833 ; -120.855833 ( Gold Run ) Gold Run
885 Griffith Quarry Taylor and Rock Springs Rds . 38°51′04″N 121°09′52″W / 38.851131°N 121.164439°W / 38.851131 ; -121.164439 ( Griffith Quarry ) Penryn
401 Iowa Hill Historic district 39°06′31″N 120°51′34″W / 39.108611°N 120.859444°W / 39.108611 ; -120.859444 ( Iowa Hill ) Iowa Hill
797 Lake Tahoe outlet gates 73 N Lake Blvd . 39°10′00″N 120°08′36″W / 39.166617°N 120.14345°W / 39.166617 ; -120.14345 ( Lake Tahoe outlet gates ) Tahoe City
402 Michigan Bluff Historic district 39°02′35″N 120°44′29″W / 39.043056°N 120.741389°W / 39.043056 ; -120.741389 ( Michigan Bluff ) Michigan Bluff
463 Ophir Historic district 38°53′28″N 121°07′25″W / 38.891111°N 121.123611°W / 38.891111 ; -121.123611 ( Ophir ) Ophir
799 Overland Emigrant Trail Big Bend Ranger Station , 2008 Hampshire Rocks Rd Soda Springs
585 Pioneer Express Trail Folsom Lake State Recreation Area 38°43′30″N 121°10′19″W / 38.724983°N 121.17205°W / 38.724983 ; -121.17205 ( Pioneer Express Trail ) Folsom
724 Pioneer Ski Area of America Cable Car Building 39°11′48″N 120°14′09″W / 39.196683°N 120.235833°W / 39.196683 ; -120.235833 ( Pioneer Ski Area of America ) Squaw Valley
780 Transcontinental Railroad - Auburn 639 Lincoln Way 38°54′07″N 121°03′58″W / 38.901867°N 121.066133°W / 38.901867 ; -121.066133 ( Transcontinental Railroad - Auburn ) Auburn
780 Transcontinental Railroad - Colfax Grass Valley Street and Railroad Tracks in Railroad Park 39°06′01″N 120°57′10″W / 39.100183°N 120.95265°W / 39.100183 ; -120.95265 ( Transcontinental Railroad - Colfax ) Colfax
780 Transcontinental Railroad - Newcastle Main and Page Sts 38°52′32″N 121°08′03″W / 38.875617°N 121.134167°W / 38.875617 ; -121.134167 ( Transcontinental Railroad - Newcastle ) Newcastle
780 Transcontinental Railroad - Rocklin Rocklin Rd and First St 38°47′30″N 121°14′16″W / 38.791683°N 121.237883°W / 38.791683 ; -121.237883 ( Transcontinental Railroad - Rocklin ) Rocklin
780 Transcontinental Railroad - Roseville Church St. & Washington Blvd . 38°45′04″N 121°17′10″W / 38.751033°N 121.28615°W / 38.751033 ; -121.28615 ( Transcontinental Railroad - Roseville ) Roseville
400 Virginiatown 4725 Virginiatown Rd . 38°54′02″N 121°12′53″W / 38.900556°N 121.214722°W / 38.900556 ; -121.214722 ( Virginiatown ) Newcastle
398 Yankee Jims Colfax Foresthill and Springs Garden Rds . 39°01′46″N 120°51′42″W / 39.029444°N 120.861667°W / 39.029444 ; -120.861667 ( Yankee Jims ) Foresthill