2018 Map of Iris Pass

About this map

Iris Pass serves as a critical topographic saddle between the Little Chuckwalla Mountains to the northeast and the Chocolate Mountains to the southwest. This arid desert landscape is defined by the ephemeral drainage of Iris Wash, which carries seasonal runoff across the high basin floors. The map highlights the intersection of the Riverside County and Imperial County boundary line as it cuts through the desolate terrain of the Colorado Desert. The survey illustrates a stark, undeveloped region where human activity is primarily represented by the established grid of the Public Land Survey System, specifically across Township 8 South, Range 14 East and neighboring sections.