Trace element water chemistry analysis of the Colorado River and Selected Tributaries in Grand Canyon, Arizona. 2009-2011. These data were utilized for the following written works: Akland, M. A. (2023). Brown trout in Grand Canyon: Identifying natal origins and movement patterns using otoliths and eye lenses through established and novel microchemistry techniques: (Unpublished master's thesis). State University of New York: College of Environmental Science and Forestry, Syracuse, NY. Hayden, T. A., Limburg, K. E., & Pine, W. E. (2013). Using otolith chemistry tags and growth patterns to distinguish movements and provenance of native fish in the Grand Canyon. River Research and Applications, 29(10), 1318–1329. https://doi.org/10.1002/rra.2627 Limburg, K. E., Hayden, T. A., Pine, W. E., Yard, M. D., Kozdon, R., & Valley, J. W. (2013). Of travertine and time: Otolith chemistry and microstructure detect provenance and demography of endangered humpback chub in Grand Canyon, USA. PLoS ONE, 8(12), e84235. https://doi.org/10.1371/journal.pone.0084235