Category Archives: Earth Science

Oxbow Mystery

OXBOW MYSTERY When a channel cuts through the steep bank in a meander loop there’s a distinctive landform produced called an “oxbow”. This blog has a number of posts describing our oxbow because it’s a cool complex of unique small … Continue reading

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Native Americans Along the Creek

Last week’s post described some “treasures” that our grandkids have discovered in the pasture down along Kanaranzi Creek. Some of the artifacts and bones that they found near circular vegetation patches seemed to warrant input from professional archaeologists. That input … Continue reading

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Artifacts, Bones, and Cache Pits

For six generations, the children in our family have looked for adventure down in the pasture along Kanaranzi Creek. And, they’ve found it: fishing and hunting, building rafts and shacks, picking up unique rocks and shells, and picking wild plums … Continue reading

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Landslides Behind Our House

The first job that I had out of graduate school was mapping landslides. The Federally funded project was administrated by the South Dakota Geological Survey and was focused initially on the Interstate 90 right-of-way at the Missouri River crossing in … Continue reading

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Channel Bank Erosion

The Kanaranzi Creek has had sustained flows at high water levels over much of the past two years. As a result, very active erosion has exposed a whole variety of features. This is a view of the high channel bank … Continue reading

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Water Levels in the Oxbow

This has been a really nice spring. The cold winter weather didn’t just slam into hot summer. We had a lot of sunshine in April; only about a quarter of the days were overcast. In contrast, last year about half … Continue reading

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Kanaranzi Creek and Covid-19

The last two years we’ve had record rainfall and Kanaranzi Creek has changed a lot because of it. Although the spring melts have not produced much flooding, the summer “rain bombs” have resulted in bank-full flows sustained over long periods … Continue reading

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Rural Fall

We had about two inches of snow the other night, but it blew into drifts. Several weeks ago, we had our first accumulating snow that stayed on the level. I had forgotten how much traffic is recorded in a few … Continue reading

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Snowbound

Earlier this week we were snowbound in Colorado. The first storm dropped about 10 inches on our kids’ home in the mountains west of Boulder. The snow piled up on the trees and then fell a second time when the … Continue reading

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Equinox Week

It happens twice a year. The polished surfaces of tombstones facing east, light up to reflect the sunrise. It shows up as a brilliant bright line at the base of the trees on the horizon in this photo that Margaret … Continue reading

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