Fig. 1From: Characterizing persistent unburned islands within the Inland Northwest USAThe study area, encompassing the Inland Northwest. The inset map shows the study area location within the western United States. (a) Landcover was aggregated from the USGS GAP landcover data (30 m resolution). (b) Fire regime groups (FRGs) across the study area. Note: the Snake River Plains and Columbia Plateau are predominantly agricultural lands, so their fire regime groups are uncertain and may change over timeBack to article page