Question: Blue Ridge Road is designated as County Route 84 between Interstate 87, New York State Route 910K and what other highway?

 It extends for 50.95 mi through the Adirondack Mountains from Blue Mountain Lake to North Creek.  The route is a northerly alternate route to NY 28 between both locations; as such, it passes through several communities that NY 28 bypasses to the south.  The westernmost 10 mi of NY 28N overlap with NY 30 through the town of Long Lake.  NY 28N and NY 30 split in the hamlet of Long Lake, from where NY 30 heads to the north and NY 28N proceeds eastward through mountainous regions of Adirondack Park. New York State Route 28N (NY 28N) is an east–west state highway in the North Country of New York in the United States. <SEP> The Hoffman Notch Wilderness Area, an Adirondack Park unit of the Forest Preserve, lies in the towns of Schroon, North Hudson and Minerva in Essex County.  It is bounded on the north by private lands lying south of the Blue Ridge Road and the Sand Pond Mountain tract donated to the state by Finch, Pruyn and Company for fish and wildlife management and silvicultural research and experimentation purposes, on the east by Interstate 87 and private lands immediately west of the Northway, on the south by private lands lying north of the Loch Muller Road and on the west by the jeep road and trail that extends from Irishtown along Minerva Stream northward to the Blue Ridge Road near Cheney Pond. <SEP> Route 17 is a state highway in Bergen County, New Jersey, United States, that provides a major route from the George Washington Bridge, Lincoln Tunnel and other northeast New Jersey points to the New York State Thruway at Suffern, New York.  It runs 27.20 mi from Route 7/County Route 507 in North Arlington north to the New York border along Interstate 287 in Mahwah, where New York State Route 17 continues into New York.  Between Route 7 and Route 3 in Rutherford, Route 17 serves as a local road.  From Route 3 north to the junction with U.S. Route 46 in Hasbrouck Heights, the road is a suburban arterial with jughandles.  The portion of Route 17, from US 46 to Interstate 287 near the state line in Mahwah, is a limited-access road with all cross traffic handled by interchanges, and many driveways and side streets accessed from right-in/right-out ramps from the right lane.  For three miles (5 km) north of Route 4, well over a hundred retail stores and several large shopping malls line the route in the borough of Paramus.  The remainder of this portion of Route 17 features lighter suburban development.  The northernmost portion of Route 17 in Mahwah runs concurrent with Interstate 287 to the New York border. <SEP>  The road is designated as County Route 84 (CR 84) from NY 28N in Newcomb to Interstate 87 (I-87) in North Hudson, and as New York State Route 910K (NY 910K) between I-87 and U.S. Route 9 (US 9) in North Hudson.  The CR 84 portion is an 18 mi , two-lane stretch of rural highway maintained by the Essex County Department of Public Works' Highway Division while NY 910K is a 1 mi highway maintained by the New York State Department of Transportation (NYSDOT). Blue Ridge Road is a 19.2 mi long roadway in Essex County, New York, in the United States.  All of Blue Ridge Road has been designated as the "Blue Ridge Road Scenic Byway" by NYSDOT.