Highway 337 begins near the Van Buren/Cleburne county line in the Ozark Mountains. The southern terminus is an intersection with Highway 92, and runs almost due west, but is signed north-south due to Arkansas's signing convention for odd-numbered routes. The highway terminates at the border of the Sugar Loaf Use Area on Greers Ferry Lake, which is owned and maintained by the United States Army Corps of Engineers (USACE, or "the Corps").[3] The campground has 57 RV/tent sites, two boat ramps, and the Sugar Loaf Mountain Nature Trail.[4]
First reassurance marker for Arkansas Highway 337 west of the Highway 16 junction in West Pangburn, Arkansas
Highway 337 begins at Highway 5/Highway 25 southeast of Heber Springs. It runs southeast to an industrial area before paralleling the Little Red River. The route turns south and intersects Highway 16, where it terminates.[6]
Near the eastern terminus, the AADT was measured as 1,600 VPD in 2016.[7]
Highway 337 was first created on June 23, 1965 from Sugar Loaf Mountain to Highway 92.[1] Two months later, the route was swapped with a county road to the current routing.[8] The second route was created on June 28, 1973 from Highway 110 toward an industrial park and Highway 912.[9] This route was extended over the gap between Highway 337 and Highway 912, and replaced Highway 912 to the Highway 16 intersection.[10] Following a realignment project in 1991, Highway 337 was truncated at Highway 5/Highway 25.[11]
^ abcSystem Information and Research Division (2015). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(MDB) on August 29, 2017. Retrieved March 27, 2016.
^Transportation Planning and Policy Division (September 16, 2014) [September 30, 2013]. General Highway Map, Van Buren County, Arkansas(PDF) (Map) (Revised ed.). 1:62,500. Arkansas State Highway and Transportation Department. OCLC919621384. Retrieved July 10, 2018. {{cite map}}: |author= has generic name (help)
^System Information & Research Division (April 1, 2017) [December 31, 2015]. Annual Average Daily Traffic Estimates, Cleburne County, Arkansas(PDF) (Map) (Prepared ed.). No scale given. Arkansas State Highway and Transportation Department. p. 12. Retrieved July 11, 2018.