New Mexico State Road 76State Road 76 is a state highway in the US state of New Mexico. Its total length is approximately. NM 76's western terminus is at NM 68 in Santa Cruz and the eastern terminus is in Picuris Pueblo at NM 75.HistoryAt the January 17, 2018 Transportation Commission meeting a was dedicated as "Casimiro Roca Memorial Highway" to honor Father Casimiro Roca. Father Casimiro Roca served the community of Chimayó, and had a large part in caring for and helping restore the Santuario de Chimayó.