Virginia State Route 600 (Lee and Scott Counties)
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| Route information | |
| Length: | 21.2 mi (34.1 km) |
| Existed: | by 1934 – present |
| Major junctions | |
| West end: |
 SR 604 near Blackwater
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 SR 696 (to  SR 33) at Dona
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| East end: |
   US 23 / US 58 / US 421 at Clinchport
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| Highway system | |
State Route 600 (SR 600) is a secondary state highway in Lee and Scott counties in the U.S. state of Virginia, running east from SR 604 near SR 70 and Blackwater to U.S. Route 23 (US 23), US 58, and US 421 at Clinchport. Most of SR 600 runs in a general north-northeast direction through river valleys from Dona near the Tennessee state line to Clinchport; at Dona it turns northwesterly over the mountains towards Blackwater. The 0.02-mile (0.032 km) State Route 696 (SR 696) continues west-southwest from Dona to the state line, where it becomes State Route 33.
When the state secondary numbers were assigned in the 1930s, SR 600 ended several miles short of Clinchport; the rest of the current route was part of SR 70, an old alignment of US 23/US 58 between Pattonsville and Clinchport. That part of SR 70 became part of SR 66 in 1940. SR 66 was moved onto US 23/US 58 in 1943, transferring its former alignment to the secondary system; the piece east of SR 600 became an extension of SR 600.
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