Just a quick post showing some photos I took from the air while flying back from Alaska. These particular photos were snapped over south-central Oregon, about 25 km south of Christmas Valley and about 20 km northeast of the north end of Summer Lake, pretty much out in the middle of nowhere.
The photo above zooms in on a linear structure, which is highlighted in part by snow and which appears to be a small-offset fault cutting through some layered, probably basaltic volcanic rocks. We are looking about due east. The steep-sided, northeast-facing wall running parallel to the fault (facing away from us and not seen in the above photo) is part of the Diablo Rim, about 5 km northwest of Diablo Peak, near Diablo Flat and Murphy's Lake (MSRMaps location).
Stepping back a little and looking at the area from a slightly more northerly angle - that is, looking about ESE - that same fault is in the lower right of the above picture. This photo also shows the really nice alluvial fan that comes out of the mouth of Sand Canyon.
Here, we've stepped even farther back, looking at a larger area from the same angle as in the last picture. Numerous linear features can be seen in the foreground and background. These features include the uplifted and tilted edges of basalt flows, which are cut by faults running north-south, northeast-southwest, and northwest-southeast.
The linear nature and locally rhomboid shapes of the faults and flow edges are accentuated somewhat by this low-angle Google Earth image.