Fig. 3

Map of sampling locations at and near Foskett Spring. Blue waters (solid lines) are wet year-round, while dashed regions indicate water bodies that fill only occasionally. Foskett Spring, Dace Spring and Coleman Creek lie within the Coleman subbasin (green border) of the Warner Lakes basin (yellow border). Deep and Twentymile creeks lie outside the Coleman subbasin. Inset map shows the location of the southern Warner Valley near Oregon’s borders with California and Nevada. The map was constructed in QGIS version 3.16.1 [119] using the river and stream network from USGS’s National Hydrography Dataset [120] as downloaded from ArcGIS Data and Maps and NASA’s SRTM Digital Elevation Data [121] as downloaded from USGS Earth Explorer at one arc-second resolution. Both datasets are freely available for redistribution as static electronic or printed maps with attribution to the data sources