Tag: Road Trip

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Geological structures

In Central Oregon you are at the mercy of winter’s weather whims.

Sun-filled days are broken up with snowfall which makes road trips unpleasant. Right now we are in the middle of a February snow-dump and have spent the last week close to home. When the roads, as well as the sky cleared, we were ready for an excursion.

East of La Pine, about 40 miles on the Fremont Highway (State Route 31), is according to our trusty Oregon Roadside Geology book,  a “garden of volcanic oddities.” Big Hole, Hole-in-the-Ground, The Devils Garden and Fort Rock were all formed about 13 thousand years ago in and along an ice-age lake that became Silver and Summer lakes. Basically, at the same time Mt Mazama was making Crater Lake.

Geological spectacles are usually enough to pique our interest, but just a few weeks ago we discovered that Fort Rock State Park was also a destination for birders.  In particular, you’ll find falcons and eagles using the unique structures of Fort Rock to launch hunting missions across the prairie and farm fields to the east.

 

The state park at it’s northwestern edge is the starting point for a series of trails that take you into the ring of volcanic ash and around it’s outer perimeter.

This scouting mission didn’t align with optimal birding times, but we saw a couple of bald eagles and a few falcons soaring in and around the rock faces.

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Chimney Rock

Usually when we are on the Crooked River, we’re on the other side of the road, rod in tow and knee deep in the stream. However, today it was a scramble up one of the many dry gullies to the east for a look out over the Crooked River canyon south of Prineville.

Chimney Rock is a distant cousin to the more famous Crooked River basalt formation Smith Rock.

But here again, we are talking about a much lower attendance on trail and of course much less technical hiking.

There is a short climb up the side of the river canyon to a juniper and sage ridge. The trail then meanders along crossing and re-crossing a dry creek bed. Ancient juniper trees are  literally poking out of rock outcroppings. The surrounding canyon walls are home to a conspiracy of vocal ravens.

The day offered an interesting prospective on a stream we often camp along, and provided a delightful hike on a sunny winter afternoon.

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Roadside geology


 
It’s a bit of an understatement to say Central Oregon has a unique geological history. Nearly every hillside and canyon in the region tells a story, exposing a variety of volcanic eras. According to “Roadside Geology of Oregon,” we live on the volcanic plateau. Walking ancient lava flows is so cool!

Northwest of Bend, a man-made lake occupies a space made up of igneous rock, once cut into by three rivers. This is where the Metolius  and Crooked join the Deschutes river. The waters of Billy Chinook draw hundreds of power boaters from May to November, however in the winter months, the canyon walls are quieter and we can indulge our geological interests in relative peace.


 
Mountain View Drive, a few miles off Highway 97 and northwest of Culver is a good starting point.  From it’s many overlook pullouts, you get a “whole picture view” of the plateau and canyon walls.

Next it’s down to the floor and the Crooked River Day Use area.  The deserted boat ramp is a nice place to stop for some lunch by the lake. The sun has made it to this level by noon and is warming huge boulders that serve as picnic site buffers.

Drive up the Crooked river branch and you are able to see textbook examples of columnar basalt that lava flows laid down millennia ago. Cross over the lake and stop to see one of the more recent rock formations in the area, a Petroglyph Rock.

We are now on the Metolius River branch and climb out of one canyon, across a flat, and drop into Fly Creek, where at USFS road 1170, the pavement ends.   A short distance farther and you pull into a turnout on the right. Down the gravel path is the Balanced Rocks, another geological oddity with Lake Billy Chinook and the snow covered peak of Mt Jefferson in the background.