County Road 101 extends north and south of Woodland, connecting to Pioneer Avenue at the north end of Woodland. When Pioneer Avenue bends southeastward just south of East Main Street, the route of County Road 101 continues  due south onto Bourn Drive and then onto Harry Lorenzo Avenue. There are two interruptions to this through line in Spring Lake, where Harry Lorenzo Avenue has been divided into disjunct segments. Because of this, drivers must take Parkland Avenue to reach the far east end of County Road 25A and travel a block westward from there to get back on County Road 101 south of town.

County Road 101 is situated one mile east of East Street and one mile west of County Road 102.

North of Woodland

At Churchill Downs Avenue on the north edge of Woodland, North Pioneer Avenue becomes County Road 101. County Road 101 is interrupted at County Road 18C (Sugarland Ranch) but resumes on the north side of Cache Creek at County Road 17 and continues from there until County Road 14.

South of Woodland

County Road 101 extends from the south edge of Woodland to County Road 27 and continues to be alternatively known as Harry Lorenzo Avenue for its full length.