#hikingtrails

Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-26

Ranger Sarah looks at the thin dark line in the limestone which is a fish fossil.
— at Fossil Butte National Monument.

Ranger Sarah looks at the thin dark line in the limestone which is a fish fossil.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-26

Ranger Sarah learns that any dark thin horizontal lines 2-8 inches long in the limestone are fossils.
— at Fossil Butte National Monument.

Ranger Sarah learns that any dark thin horizontal lines 2-8 inches long in the limestone are fossils.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-26

Ranger Sarah continues to hike through the historic fossil quarry.
— at Fossil Butte National Monument.

Ranger Sarah continues to hike through the historic fossil quarry.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-26

Ranger Sarah learns about Volcanic Tuff that can be found in the area. Here a thicker section of Tuff can be seen, which lines up with the picture, it is just below the layer of rock with vertical cracks.
— at Fossil Butte National Monument.

Ranger Sarah learns about Volcanic Tuff that can be found in the area. Here a thicker section of Tuff can be seen, which lines up with the picture, it is just below the layer of rock with vertical cracks.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-26

Ranger Sarah climbs up a lot of stairs to check out more of the historic quarry.
— at Fossil Butte National Monument.

Ranger Sarah climbs up a lot of stairs to check out more of the historic quarry.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-25

Ranger Sarah learns more about the 18 inch fossil layer and the other fossil layers (1 below and 3 above) and how the fossils in these layers differ and result in different quality fossil finds.
— at Fossil Butte National Monument.

Ranger Sarah learns more about the 18 inch fossil layer and the other fossil layers (1 below and 3 above) and how the fossils in these layers differ and result in different quality fossil finds.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-25

Ranger Sarah looks out across the valley, amazed that those distant ridges represent the same layer in Fossil Lake before 45 million years of erosion went to work.
— at Fossil Butte National Monument.

Ranger Sarah looks out across the valley, amazed that those distant ridges represent the same layer in Fossil Lake before 45 million years of erosion went to work.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-25

Ranger Sarah learns about the erosion here. Around the valley tan layers on the ridge tops where deposited by Fossil Lake and are at the same level Ranger Sarah is now at. Then the Wasatch Formation deposited the red rock on top. 45 million years of erosion gives us the land we see today.
— at Fossil Butte National Monument.

Ranger Sarah learns about the erosion here. Around the valley tan layers on the ridge tops where deposited by Fossil Lake and are at the same level Ranger Sarah is now at. Then the Wasatch Formation deposited the red rock on top. 45 million years of erosion gives us the land we see today.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-25

Ranger Sarah signs the trail register at the historic quarry site.
— at Fossil Butte National Monument.

Ranger Sarah signs the trail register at the historic quarry site.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-25

Ranger Sarah learns about the 18 inch layer. Formed in the deepest part of Fossil Lake, over half of the fossils found in this layer are complete and intact.
— at Fossil Butte National Monument.

Ranger Sarah learns about the 18 inch layer. Formed in the deepest part of Fossil Lake, over half of the fossils found in this layer are complete and intact.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-24

Ranger Sarah looks up at the historic quarry. When Animals and plants died here and sank to the lake bottom they were quickly covered by a microbial mat and layers of limestone sediment, which prevented decomposition and scavenging.
— at Fossil Butte National Monument.

Ranger Sarah looks up at the historic quarry. When Animals and plants died here and sank to the lake bottom they were quickly covered by a microbial mat and layers of limestone sediment, which prevented decomposition and scavenging.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-24

Ranger Sarah learns that fossil formation here was due to a unique combination of quiet water, fine-grained lake sediments, and a microbial mat which created exceptional preservation conditions.
— at Fossil Butte National Monument.

Ranger Sarah learns that fossil formation here was due to a unique combination of quiet water, fine-grained lake sediments, and a microbial mat which created exceptional preservation conditions.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-24

Ranger Sarah has arrived at the spur trail to one of the historic quarries.
— at Fossil Butte National Monument.

Ranger Sarah has arrived at the spur trail to one of the historic quarries.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-24

Ranger Sarah looks at the red outcrops in the hills which are from the Wasatch Formation. The formation contains fossils of early mammals, reptiles, and plants, as well as invertebrate and plant fossils, but this a few in numbers and tend to be fragmented.
— at Fossil Butte National Monument.

Ranger Sarah looks at the red outcrops in the hills which are from the Wasatch Formation. The formation contains fossils of early mammals, reptiles, and plants, as well as invertebrate and plant fossils, but this a few in numbers and tend to be fragmented.
— at Fossil Butte National Monument.
Adventures of Ranger SarahAdventuresofRangerSarah
2025-11-23

Ranger Sarah learns that red outcrops in the hills here are from the Wasatch Formation and contain very few fossils, those when found are from animals that live along the ancient lake.
— at Fossil Butte National Monument.

Ranger Sarah learns that red outcrops in the hills here are from the Wasatch Formation and contain very few fossils, those when found are from animals that live along the ancient lake.
— at Fossil Butte National Monument.

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