E-bikes NOT allowed on Lower Butte Loop
The Lower Butte Loop offers a 11 mile loop opportunity while connecting with the other trail segments in the vicinity. The trail is located on the south and west sides of Black Butte and follows a mixture of logging roads and single track with irregular surfaces.
As you travel the south and west portions you will see towering “yellow belly” Ponderosa pines and Douglas fir trees.
Above description from the Sisters Country Trail Guide