AN archaeological site, located near the beach line in a desert part of the Huarmey Valley, 292 km north of Lima, in the department of Ancash, province of Casma, district of Huarmey, 78°10′21″ W, 10°02′ 45″ S in Peru, was first observed by D. H. Kelley in 1957. It had been previously found by E. P. Lanning who identified it as a pre-ceramic site. It was first designated Huarmey North 1 and it appears as such in previous literature; we are assigning it its real name, Los Gavilanes. We report here 14C dating of maize plant, tassel and cob material from this pre-ceramic site in Huarmey, Peru, at 3,750±100 yr BP. © 1978 Nature Publishing Group.