North-central Oregon is home to a geologic gem called John Day Fossil Beds National Monument. It is made up of three areas: the Painted Hills Unit, Clarno Unit, and Sheep Rock Unit.
In this post, we are going to feature the Painted Hills Unit. Read on to learn more about this amazing location and see some photographs from our gallery.
Photographs from the Painted Hills Unit
The best time to photograph this unit is after a rain, when the colored layers are most intense. And, shooting at the golden hours of dawn and dusk is not too shabby, either. Throughout this unit, views can be expansive because they are unobstructed by trees, power poles, or buildings. Here are some views of the Painted Hills Unit:
Places to photograph in the Painted Hills Unit
Although roads within the unit are unpaved, they are easy to drive – except during heavy downpours of rain. This make the Painted Hills Unit is very accessible. And several parking areas make it easy to access the five hiking trails in this unit. All but one of the trails are under a mile in length. Here is a National Park Service PDF map of hiking trails in the Painted Hills and Clarno Units.
Colors of the Painted Hills Unit
The colors of the Painted Hills unit are caused by differences in the chemical composition, depositional environment, and the weathering conditions of the various layers. These layers illustrate the shift from a hot, tropical climate to a more temperate one. This shift occurred between 34 and 32 million years ago.
Reddish-hued layers were deposited in a tropical climate with a great deal of vegetation and precipitation. But, the lighter tan layers represent a period when the climate was more temperate with less precipitation. As you can see from the photos, the red layers and the tan layers alternate.This indicates the climate may have been oscillating between wet and dry over a long period of time. Finally, the dark bluish staining is believed to be caused by ancient plants that grew in this paleosol and left a residue of manganese.
Purchasing our photos
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