2017 Map of Irish Lake

About this map

Irish Lake and the surrounding high desert of Harney County are defined by a complex network of ephemeral water sources and seasonal drainages. This high-plateau landscape features a series of distinctive volcanic and tectonic landforms, including Jackass Mtn and the unique depression known as Hole-in the Ground. To the east, the terrain drops away into the Blitzen Valley, where the Donner und Blitzen River flows toward its terminal basin. Human presence in this arid environment is marked by essential water infrastructure, ranging from cattle-industry landmarks like Company Trough and Bailey Waterhole to named springs such as John Cabin Spring and Dead Cow Spring. The map traces the routes of Jack Mountain Rd and the Foster Flat-Harney Lake Rd, which provide access to remote areas like the Juniper Bed Grounds.