To the south, True made detailed archaeological comparisons between the San Luis Rey Complex and the Cuyamaca Complex, produced by the Luiseño's linguistically unrelated but culturally similar neighbors, the Kumeyaay. Perhaps the strongest distinction found by True was between the roughly equal frequencies of Desert Side-notched and Cottonwood Triangular points in the Cuyamaca Complex and the scarcity of Desert Side-notched points in the San Luis Rey Complex. This contrast was based primarily on comparisons between sites on Palomar Mountain and in Cuyamaca Rancho. In coastal and inland valley portions of Luiseño and Kumeyaay territories, the differences are less pronounced.