This Data Release provides supporting data to characterize and identify influences of streamflow permanence in headwater streams in the Huachuca Mountains, Arizona, U.S.A. Relative conductivity as a proxy for surface water presence was measured in headwater streams in the Huachuca Mountains from 2010-2014. These data are summarized as mean daily values. Geologic influences on the timing of surface flow conditions were evaluated. The Data Release includes the following components that are zipped files containing both data and metadata files. 1.) Daily mean relative conductivity values for electrical resistivity sensors installed in headwater streams in the Huachuca Mountains from 2010-2014 and the geographic coordinates of the sensor locations. 2.) Spatial data in the form of surficial geology, faults, and locations of springs and wells for the Huachuca Mountains that were manually digitized from plate 1 of Brown and others (1966). Brown, S. G., Davidson, E. S., Kister, L. R., & Thomsen, B. W. (1966). Water Resources of Fort Huachuca Military Reservation, Southeastern Arizona (No. 1819-D). US Government Printing Office, https://doi.org/10.3133/wsp1819D.