Horse Butte is a small red cinder cone a mile from my house. There is a trailhead there, otherwise it would just be another one of dozens (hundreds?) of buttes that pop up from the ground for miles to the south and east of the Cascade Mountains in Central Oregon. It is topped with a scraggly ponderosa on the south and a row of healthier trees, mostly junipers, to the north. When I am out on the trails near my …