"This distinctive flag was officially adopted in 1925 and features the sun symbol of the Zia Pueblo Indians. The colors (yellow and red) were the official colors of Queen Isabella of Spain, brought to North America during the Spanish colonial era."
From the website
Addition;
The yellow field and red symbol colors are the colors of Spain. First brought to New Mexico by Spanish explorers in 1540. On New Mexico's flag we see a red sun with rays streching out from it. There are four groups of rays with four rays in each group. This is an ancient sun symbol of a Native American people called the Zia. The Zia believed that the giver of all good gave them gifts in groups of four. These gifts are: * The four directions - north, east, south and west. * The four seasons - spring, summer, fall and winter. * The day - sunrise, noon, evening and night. * Life itself - childhood, youth, middle years and old age. All of these are bound by a circle of life and love, without a beginning or end.
