Question: What important roadway met a 2170 mi historic east–west, large-wheeled wagon route on the site of Rock Creek Station and Striker Homesite?

Context paragraphs:
Rock Creek Cemetery: Rock Creek Cemetery is an 86 acre cemetery with a natural and rolling landscape located at Rock Creek Church Road, NW, and Webster Street, NW, off Hawaii Avenue, NE, in the Petworth neighborhood of Washington, D.C., United States.  It is across the street from the historic Soldiers' Home and the Soldiers' Home Cemetery.  It also is home to the InterFaith Conference of Metropolitan Washington.  On August 12, 1977, Rock Creek Cemetery and the adjacent church grounds were listed on the National Register of Historic Places as, Rock Creek Church Yard and Cemetery.

Rock Creek (Medicine Bow River): Rock Creek is a 125 mi river in the south central part of the U.S. state of Wyoming.  It empties into the Medicine Bow River.  The drainage basin of Rock Creek starts high on the north side of the Snowy Range.  At the northern base of the range, Rock Creek runs through the town of Arlington and continues on through McFadden and Rock River.  From there Rock Creek runs primarily northeasterly before turning to the northwest and meeting with the Medicine Bow River just north of the town of Medicine Bow.

Rock Creek Station and Stricker Homesite: Rock Creek Station and Stricker Homesite is a historical site operated by the Idaho State Historical Society.  It includes the Stricker Store and Farm, which was listed on the National Register of Historic Places in 1979.  Two previously important roadways (Oregon Trail and the Kelton Road) met at this site.

List of crossings of Rock Creek: This is a list of crossings of Rock Creek.  Rock Creek runs for 31 miles from its source in Montgomery County, Maryland, to its mouth at the Potomac River, of which the final nine miles lies in Washington, D.C.  The entirety of Rock Creek downstream of the Maryland border is within Rock Creek Park (except for a small portion that runs through the National Zoo).  The crossings built after Rock Creek Park was established in 1890 until World War II tended to be stone-faced bridges constructed to harmonize with the rustic surroundings, while postwar bridges were more utilitarian concrete and steel structures.  Of the 35 crossings, 23 are covered by a Historic American Engineering Record (HAER), and two bridges—the gargantuan Taft Bridge and the bucolic Boulder Bridge—are on the National Register of Historic Places.

Rock Creek, Kansas: Rock Creek (also known as Cooks Ford) is an unincorporated community in Rock Creek Township, Jefferson County, Kansas, United States.  It lies along 110th Road near its intersection with K-4.  K-4 used to run along Rock Creek Road and originally cut through Rock Creek, but years later the highway was widened and rebuilt just east of Rock Creek.  The community is located at (39.2458313, -95.5371988), at an elevation of 1,099 feet (335 m).

Oregon Trail: The Oregon Trail is a 2170 mi historic east–west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon.  The eastern part of the Oregon Trail spanned part of the future state of Kansas, and nearly all of what are now the states of Nebraska and Wyoming.  The western half of the trail spanned most of the future states of Idaho and Oregon.

Pipestone Creek (Big Sioux River): Pipestone Creek is a 53.2 mi river in southwestern Minnesota, having a center branch as well as branches named "North" and "South".  The creek (center branch) begins about 3 mi north of Holland (the high point of its watershed actually being underneath the north branch's watershed) and flows southwesterly, roughly following MN State Highway 23 for much of its early existence (also being known as County Ditch Number 1).  The creek approaches the town of Pipestone from the east, but turns northwesterly just before Highway 23 meets U.S. Highway 75, with the creek going under both highways in rapid succession.  Flowing through Pipestone National Monument, the creek passes over Winnewissa Falls, and then enters the adjacent State DNR controlled "Pipestone Wildlike Management Area" where a small "impoundment" (dam) forms "Indian Lake".  The creek continues northwesterly until turning southwesterly just east of County Road 53.  On the west side of County Rd 53, and on the North side of Country Rd 5, it is joined by the North branch, and on the south side of the same road, the South branch joins.  The creek continues southwesterly, and crosses the state line in South Dakota above the road known as 81st Street in Minnesota and 236th A Street in South Dakota.  It does not travel far into South Dakota, but loops back into Minnesota, flowing into Split Rock Creek within a mile of the state line, this confluence about 3 miles north of Sherman, South Dakota, also being 3 miles south of Jasper, Minnesota.  Split Rock Creek itself is a tributary of the Big Sioux River, which in turn flows via the Missouri River and Mississippi River to the Gulf of Mexico.

Rock Creek (Clear Creek): Rock Creek is a freestone stream in the northeastern part of the U.S. state of Wyoming.  It is a tributary of Clear Creek, within the Powder River watershed.  Its source is located in the Rock Creek Roadless Area.  According to the U.S. Geological Survey, Rock Creek drains approx. 60 mi before discharging into Clear Creek, just east of the city of Buffalo and Interstate 90.

Rock Creek Roadless Area: The Rock Creek Roadless Area (B032) is located northwest of Buffalo, Wyoming, in the Bighorn National Forest.  It comprises roughly 34000 acre of forested timberlands, mountain parks, rugged canyons, and stunning rock formations.  This area represents the entire spectrum of environments found in the Bighorn National Forest and encompasses prairie land to high alpine peaks.  This roadless area is the source of the north, middle, and south forks of Rock Creek, Balm of Gilead Creek, Pheasant Creek, and Ditch Creek.  The area is flanked on the eastern side by the Bud Love Big Game Winter Range and the HF Bar Ranch Historic District.  On the southern side the roadless area is surrounded by the Paradise Guest Ranch.  The roadless area is home to elk, moose, mountain lion, pine marten, blue grouse, ruffed grouse, and raptors.  The Rock Creek area is the largest area of quality elk security habitat outside of the Cloud Peak Wilderness Area and would provide an important corridor from the high country to the Bud Love Habitat Management Unit.  The Rock Creek roadless area is dominated by lodgepole pine, some ponderosa, and aspen stands with low-growing juniper in the undergrowth.  The area has not been opened to roads due to the ruggedness of the landscape and the high costs of implementation.

Rock Creek, Butte County, California: Rock Creek (also, Keefers Station, after James L. Keefer, the first postmaster) is a former settlement in Butte County, California, United States.  It was located 7 mi northwest of Chico.  A post office operated in Rock Creek from 1858 to 1871.  Rock Creek was an amalgamation of two smaller camps, Big Rock Creek and Little Rock Creek.

Supporting paragraphs: Rock Creek Station and Stricker Homesite Oregon Trail
Answer: the Kelton Road