| State: | NV |
| Type: | SR |
| Route: | 264 |
| Alternate Name: | Fish Lake Valley Road, Dicalite Cutoff |
| Map: | Nevada 264 map.svg |
| Length Mi: | 33.667 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Established: | 1976 |
| Direction A: | South |
| Terminus A: | towards Oasis, CA |
| Direction B: | North |
| Terminus B: | near Basalt |
| Counties: | Esmeralda |
| Previous Type: | SR |
| Previous Route: | 233 |
| Next Type: | SR |
| Next Route: | 265 |
State Route 264 (SR 264) is a 33.67miles state highway in Esmeralda County, Nevada, United States. It connects California State Route 266 to U.S. Route 6 (US 6) via the town of Dyer, Nevada. The majority of the route is known as Fish Lake Valley Road, with the northern portion referred to as the Dicalite Cutoff. A majority of the route was originally designated State Route 3A.
SR 264 begins at the California State line approximately 4.3miles north of Oasis, California on California State Route 266. From there, the highway follows Fish Lake Valley Road north to pass through the small community of Dyer. As the route heads north from Dyer through Fish Lake Valley, Boundary Peak, the highest point in the state of Nevada, comes into view on the west side of the highway.[2] About 15miles north of Dyer is a junction with State Route 773, where Fish Lake Valley Road turns off of the route. At this point, SR 264 curves northwest to follow the Dicalite Cutoff. The route reaches its terminus at US 6, approximately 5miles east of Basalt.
The southern 25miles of State Route 264 and all of State Route 773 were both previously designated State Route 3A.[1]
SR 3A first appears on state highway maps in 1933 as an unimproved road stretching from the California - Nevada state line to the junction of State Route 3 (now US 95) and State Route 15 (now US 6) at Coaldale.[3] The route's northern terminus appears to have been shifted 8miles west of Coaldale around 1937.[4] By 1941, SR 3A had been relocated to a new gravel road alignment which resembles that of present-day SR 264 and SR 773.[5] The road was paved between US 6 and Dyer by 1949,[6] and the remainder of the route received pavement by 1953.[7]
The Dicalite Cutoff first appears on the state map in 1978. This was also the first edition to show State Route 3A being replaced by State Route 264 as part of the statewide renumbering of Nevada's highway system.[8] The designations for current SR 264 and SR 773 were approved by the Nevada Department of Highways on July 1, 1976[9] - the routing of these highways north of Fish Lake Valley was not made clear on state maps until 1991, when SR 773 was finally shown on the map.[10]