The Old Spanish National Historic Trail is co-administered by the National Park Service and the Bureau of Land Management.
Aaron Mahr Yáñez, Superintendent, National Trails Intermountain Region, National Park Service, 505-988-6736
Sarah Schlanger, Trail Administration, Bureau of Land Management, 505-438-7454
The BLM New Mexico State Office is at 1474 Rodeo Road, Santa Fe, New Mexico.