A THE LANGUAGE is often among the last vestiges of the ancestral cultural heritage to be lost before a minority group becomes finally assimilated, the study of the language of such a group can shed considerable light on its present state of acculturation. The group under study here is the Spanishspeaking one in and around Denver. The principal source of the investigation is the Spanish-language radio station KFSC, the only one of its kind in the state. It broadcasts to an area approximately I50 miles in diameter and thus embraces the cities of Brighton, Fort Lupton, Longmont, Loveland, Greeley, and Fort Collins. This region is not traditionally Spanish-speaking and there are no Spanish place names, but a large number of speakers of Spanish are located here. Spanish speakers began moving in around the beginning of the century, attracted by the expanding sugar beet economy of northern Colorado and by the growing industry of Denver and its environs. The old Spanish settlements are found south of the Arkansas River, where Colorado is contiguous to the state of New Mexico. As the Spanish-speaking group depends to a large extent on the Englishspeaking population for its livelihood and for most goods and services, it must be to a considerable degree bilingual. Thus, of three important factors in the survival of a language group, namely, location, degree of autonomy, and language loyalty, we find that the situation, in regard to the first two, is very unfavorable. The Spanish speaker is economically dependent on the world outside the group. He must also send his children to English-speaking schools. As to his language loyalty, this is strengthened by his Spanish-speaking churches, his preference for Spanish-speaking residential sections, and possibly by his 'Latin' appearance which often makes him distinguishable from the rest of the population. The presence and apparent prosperity of a Spanish-speaking radio station, and of Spanish-speaking motion-picture houses and television programs, would seem to indicate a strong language loyalty as well as the presence of a numerically important minority in northern Colorado.