Adventures of Ranger Sarah
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rangersarah.bsky.social
Adventures of Ranger Sarah
@rangersarah.bsky.social
Ranger Sarah travels to show and teach kids and adults about all the cool things our world has to see.
Ranger Sarah continues her hike along the Historic Quarry Trail. Above her is the limestone bluff which contains the fossil bearing layers.
—Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #outdooradventures
November 28, 2025 at 3:09 PM
Haddenham's A fram shack now sits in a protective wooden shack that was build built to protect the shack when Ranger Sarah visited.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #outdooradventures
November 28, 2025 at 3:04 PM
Ranger Sarah learns about David C. Haddenham's shack that he used in his 50 years of collecting fossils here.
— Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #outdooradventures
November 28, 2025 at 2:57 PM
Ranger Sarah approaches David C. Haddenham's A frame shack that he stayed in while collecting fossils from his nearby quarry.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #outdooradventures
November 28, 2025 at 2:51 PM
Ranger Sarah with a sign asking if you remember what these thinner orange layers are that are used as a geologic marker and are found through out the fossil basin. (They are volcanic tuff layers)
—Fossil Butte National Monument.

#adventuresofrangersarah #geology #Wyoming #outdooradventures
November 27, 2025 at 3:30 PM
Ranger Sarah at another sign which asks what you think. Are these limestone layers organic rich or poor. (they are organic poor)
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #geology #fossilbuttenationalmonument #Wyoming #nationalpark #nps #outdooradventures
November 27, 2025 at 3:25 PM
Ranger Sarah is at a sign which asks if these layers are organic rich or poor. What do you think. (these are organic rich)
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #geology #fossilbuttenationalmonument #Wyoming #nationalpark #nps #outdooradventures
November 27, 2025 at 3:20 PM
Ranger Sarah learns this Organic-rich limestone formed in deep lake waters where calcium carbonate precipitated slowly. Dead organic matter (algae) sank to the bottom and decade much slower due to low oxygen levels. This algae was compressed & converted into kerogen creating darker layers.
November 27, 2025 at 3:10 PM
Ranger Sarah learns about this organic-poor limestone layer. These thick layer resulted from rapid sedimentation when Calcium rich waters mixed with Alkaline lake water, causing calcium carbonate to precipitate rapidly. Fish, stingray & crayfish can be found here.
— at Fossil Butte National Monument
November 27, 2025 at 3:02 PM
Ranger Sarah looks at the thin dark line in the limestone which is a fish fossil.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #fossils #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #nps #outdooradventures
November 26, 2025 at 2:17 PM
Ranger Sarah learns that any dark thin horizontal lines 2-8 inches long in the limestone are fossils.
— at Fossil Butte National Monument.

#adventuresofrangersarah #fossils #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #nps #outdooradventures
November 26, 2025 at 2:12 PM
Ranger Sarah continues to hike through the historic fossil quarry.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #fossils #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #nps #outdooradventures
November 26, 2025 at 2:07 PM
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.
—Fossil Butte National Monument.

#adventuresofrangersarah #fossils #Wyoming #outdooradventures
November 26, 2025 at 2:01 PM
Ranger Sarah climbs up a lot of stairs to check out more of the historic quarry.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #fossils #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #nps #outdooradventures
November 26, 2025 at 1:55 PM
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.
—Fossil Butte National Monument.

#adventuresofrangersarah #fossils #Wyoming #outdooradventures #hike
November 25, 2025 at 2:10 PM
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.

#adventuresofrangersarah #fossils #fossilbuttenationalmonument #Wyoming #nps #outdooradventures
November 25, 2025 at 2:05 PM
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.
November 25, 2025 at 2:00 PM
Ranger Sarah signs the trail register at the historic quarry site.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #fossils #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #nps #outdooradventures
November 25, 2025 at 1:55 PM
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.

#adventuresofrangersarah #rangersarah #fossils #Wyoming #nationalparks #nps #outdooradventures #hike
November 25, 2025 at 1:49 PM
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.

#adventuresofrangersarah
November 24, 2025 at 2:09 PM
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.
—Fossil Butte National Monument

#adventuresofrangersarah #hike #Wyoming #OutdoorAdventures #fossils
November 24, 2025 at 2:03 PM
Ranger Sarah heads up the spur trail to the historic quarry. The abandoned quarry site is 7410 feet above sea level, about 600 feet higher than the beginning of the trail.
— at Fossil Butte National Monument.

#adventuresofrangersarah #hikingadventures #hiking #hike #nps #Wyoming #nationalparks
November 24, 2025 at 1:56 PM
Ranger Sarah has arrived at the spur trail to one of the historic quarries.
— at Fossil Butte National Monument.

#adventuresofrangersarah #rangersarah #fossilbuttenationalmonument #hikingadventures #hiking #hike #hikingtrails #Wyoming #nationalparks #nps #OutdoorAdventures #outdoors #fossils
November 24, 2025 at 1:49 PM
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.
—Fossil Butte National Monument.

#fossils
November 24, 2025 at 1:45 PM
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.
—Fossil Butte National Monument.

#adventuresofrangersarah #fossilbuttenationalmonument #Wyoming #nationalparks
November 23, 2025 at 1:37 PM