My hiking buddy and I enjoy all things geology and history on our adventures, so off we went early Saturday morning for about a 3 hour drive from Spokane (with a couple of stops along the way). All I can say is, WOW! This is one of the most geologically diverse areas I’ve seen in Eastern Washington and am only sorry it took living here 12 years before I experienced it.
First off, the trailhead is not easily found, but the locust grove is easy to spot so that’s where we parked and just headed towards the cliffs. We soon found the trail, which gets very close to the edge of the steep somewhat unstable drop off, but makes for some spectacular overviews of the bluff sandstone formations, the landslides, the free flowing Columbia and the waterfowl that like to hang out on the shores and along the upriver island. We had our dogs along, and though one of them kept searching for ways to visit the ducks up close and personal, she fortunately didn’t create another major landslide.
We hiked as far as the large sand dune, climbed up and felt giddy with the views and the fresh air. My hiking buddy thought it was the next best thing to a late winter snowy mountain climb. As we stood up there, we could see the remains of the Manhattan Project – odd looking buildings and roads that seemed to go nowhere. It looks like the cleanup is well underway, but I’m glad we were on the non-radioactive side of the river! I gazed across the landscape, trying to imagine what this area looked like 60 or 70 years ago, and how it ever could have been a secret for so long.
We had lunch on a lower landslide bench nestled in a large patch of fall-blooming wind-guarding rabbit brush. Orange-colored tumbleweeds were caught in the back slopes of the landslides, as the high winds surely would have blown them far away otherwise. We saw evidence of the Missoula Floods in the form of erratics tossed about here and there. Coyote and deer tracks were numerous, and we spotted ducks and geese/swans, crows, chukkars, and hawks.
After we climbed the dunes, we as “loopers” decided to take the Columbia shoreline back. Climbing down through layers of sandstone we oohed and ahhed at the swirls and layers of sandstone and siltstone, which varied from shades of pink to green and yellow, but predominantly white. We speculated that this sand was deposited by the ancestral Columbia as it meandered through a flat basin many many years ago. Later on, we discovered concretions of this silt and sandstone on the beach (some folks call them “sand babies”). These are crazy fun layered globular cemented sand and silt grains, which form as groundwater seeps through the layers, causing the grains to adhere to foreign objects. Most appear to be attached to small pieces of wood, which has long since turned to rock (the Ringold Formation here is around 5 million years old). The mud is a little factor down here, as it quickly sticks to the boots adding an extra pound of weight and forms wet cement slippers on the dogs paws. Never fear though, if you take the route back that we did through a swamp (not advisable) that stuff will quickly wash off… If you do the loop, cut back to the parking area the same way you came at the bottom of the bluff… don’t cross the little catchment basin.
I can’t wait to go back and hike all the way to the end. Ours was about a 6 mile RT, with 900 ft elevation gain. Super easy, and super scenic. I think the fall, winter or early spring are probably the best times to visit due to the summer heat factor. There were a few duck/geese hunters so we decided to wear bright hats. A word of caution at the parking area, we saw puncture vine which sticks to your tires, boots and dog paws (ouch). Seems this stuff is spreading in south central WA.
Have a great trip if you get the chance to go! Don’t wait 12 years like I did…