Geology & Terrain E-mail

 The unique landscape of the valley is a product of volcanic activity and the last glaciation.  The Ranchland Estates plateau was formed by glaciers that eroded much of the lava left from previous volcanic activity, leaving remnants of lavas which formed terraces up along the valley walls.  The plateau was formed by the flat-lying lava flow, later covered by silt brought in by a large lake that filled the valley after the last ice age melt. 

Volcanic boulders are found in areas of the plateau, likely transported and left behind by glacier activity.  In several places boulders are mysteriously laying together in long straight lines, with many of the lines running in the same direction.  Again, this is likely the work of a glacier, perhaps dropping boulders from accumulation in an ice crevice. 

The hollow rocks or vesicles with round indentations are scattered over the property and are likely attributed to very large gas bubbles in the lavas, or differential weathering between mineral types composing the lava boulder. 

Today the plateau consists of gently undulating land covered by bunchgrass, with scattered stands of Ponderosa Pine and Douglas Fir.