Today is the day we get on the Cascade Lake Scenic Byway, a road that circles along the many campsites of the US Forest Service as well as a couple of “simple” resorts. There is no cell service here though the lodge at some places may offer wifi, though not sure. GPS is often dodgy.
There are also many trailheads into the 200,000 acres of Three Sisters Wilderness Area. Vistas of the sisters and the other mountains of the New Cascades are frequent. Our first stop is to the chair lift at Mt Bachelor. It too is one of the large volcanically formed mountains where cone shaped vents are visible on the hillside.
We took the lift up and marveled at the views. Also at the mountain bicyclists who ride up, with their bike in the chair in front in a special cradle. They are all helmeted and some are padded at the knees and elbows. They take the ramp down for the chair’s drop off point and quickly zoom away down the ski slopes designated for them. I imagine they go up and down all day!! It’s probably exhausting. I wonder if they ski here in the winter where the lift tickets start at $80.
We joined a talk by the US Forest Service volunteer and learned a great deal about the area. He spoke of the formation of the mountains we could see. The old cascades to the west are much older by many thousands of years. He spoke of the Sisters and Mt Bachelor and the nearby Broken Top mountain that are relatively new. He pointed out the features on Mt B: the vent cones as well as where a glacier at one point had carved out a cirque up above us and then stopped part way down the mountain and left a prominent “glacial end moraine” of unsorted glacial till. A phrase heard a number of times on the East Coast relative to Cape Cod and the Islands.
Another very interesting conversation was about the plate tectonics we’ve heard mention of. Our volunteer had a good sized National Geographic map of the world showing the plate lines, the faults, and the volcanoes. The movement of the continents to their current position is somewhat responsible for the mountains. As the expansion of the mid-Atlantic zones created the split of the Americas from Africa and Europe it caused the subduction of the plates on the Pacific side. The North American plate is slowly being squeezed up while the Pacific Plate is diving down under. This has created the coastal ranges of the west coast, though not the Rocky Mountains as they formed much longer ago. The many fault lines experience these motions and occasionally earthquakes indicate some of the movement
In this area there is constant movement. Seismologists record many small earthquakes that we can’t feel, 2-3 on the Richter scale. There is the full expectation that somewhere in these new cascades there will be an eruption at some point. The magma is still down there! Several years ago there was a bulge being recorded in the Sisters/Mt B area by GPS. The whole area started to lift a couple of centimeters over the course of a few years. It then stopped. But were it to start up again it might indicate magma flows toward the surface.
When the magma breaks through and the lava starts flowing around, it builds up the cones and resulting mountains. Sometimes it’s just a lava flow that goes in most directions for many miles. Additional flows start again on top of the old flows and the mountains build. Sometimes there is cinder and ash as we saw at lava butte where, due to the prevailing winds at the time deposited more of the cone on the northwest side. The lava broke through the thinner ash and cinder side to the northeast so the bulk of the lava field is in that direction.
It was a fascination talk with the beautiful backdrop of Mt B and the Sisters, on a sunny nearly full blue sky day. As we headed to the parking lot we saw the Oregon state flag. It’s the only 2 sided flag in the nation.
After Mt B we tried to find an area known as Devils Garden. The information brochure we have is 10-20 years old and, according to a young FS volunteer, it may have disappeared. It was to be an area of springs under the Devils Hill lava flow that formed a stream that became silted in and turned into a meadow. It may now be a more firmly established area of trees and forest. The brochure indicated, however, that lava rocks from the Devils Hill Flow were collected and taken by James Irwin to the moon on one of the Apollo missions. Astronauts trained in the lava fields of central Oregon in 1964 and 1966 for the Apollo missions.
We next drove to get a view of Elk Lake. This is a large lake with boat access – sailboats and motorboats. We found a very populated beach area with kids swimming, and lots of kayaks and stand up paddle boards. We also saw pets and kids with adults on the SUPs!!!
The next lake, Lava Lake, is where our campground is. We drove in, found our spot, and walked around. It’s pretty and quiet. We are near the boat launch area which is also fun to visit and watch. We put together a small campfire from salvaged wood from other firepits. It was even warm enough to have our first dinner outside, by the fire. We are in a place with no hookups and at night, with no indicator lights on in the coach, it was pitch black through the night. It cooled down nicely overnight for a good night’s sleep.