This article presents a new analysis of full-root reduplication in Klamath. This process, hitherto termed “intensive” reduplication, has previously been analyzed as involving prefixation. Klamath prefixes normally induce vowel reduction in the following morpheme, but the intensive reduplicant does not. McCarthy and Prince (1995) attempt to account for this divergent behavior by invoking base-reduplicant faithfulness; Zoll (2002) attributes it to a stem-internal/stem-external distinction among prefixes. Based on phonological and semantic criteria, our analysis resolves intensive reduplication into several classes, including both prefixing and suffixing types. This analysis improves empirical coverage over previous accounts while minimizing assumptions and demonstrates that careful morphological and phonological analysis can distinguish between prefixing and suffixing copying in cases of seemingly ambiguous total reduplication.