Upcoming events

    • 25 Jul 2026
    • 20

    Alternatives for the Lost Dune Archaeological Site Field Trip

    Greetings ASCO Members,

    We regret The Lost Sand Dunes Field Trip IS CANCELED for July 25. Scott Thomas contacted us this past week after visiting the site and found grass growing 3 feet tall in the middle of the dirt track. By late July, the grass would be flammable and was very concerned about starting a range fire with a vehicle catalytic converter. We will look for an earlier trip next year. Tom Machala, ASCO Trip Committee Chair


    Individual Options after CANCELATION of the Lost Dune site tour.

    Although not sponsored by ASCO, members can still choose to do their own trip on 7/25 to the Malheur Cave and Harney County Historical Museum, as was proposed with the original Lost Sand Dunes trip. Below is information on both:

    Harney County Historical Museum is located on the Northeast end of Burns, with past and local settler artifacts and archaeological specimens, including arrow heads and Native American sandals similar to those from Paisley Cave. it is open 10:00am to 4:00pm Tuesday-Saturday. There is a small admission fee. Located North end of Burns off at the top of the hill on the left as Hwy 20 exits Burns to the North.

    Malheur Cave is located about 55 miles past Burns off Highway 78. Open 10-4 PM July 25 & 26 only. The Robert Burns Masonic Lodge No. 97 in Burns purchased the cave and the surrounding 40 acres of land to use as a meeting venue. The inside has been modified to function as a meeting hall. The floor is paved with asphalt in sections, and stadium-style bleachers and a Masonic altar have been installed to facilitate large gatherings. To protect it from vandalism, The Lodge only opens it a few weekends each year. Lodge requires release of information, no guided tours, Admission is Free, but Donations are requested. There is No cell service, toilet, water, shade, except in cave; bring flashlight.

    Malheur Cave is a classic lava tube extending approximately 3,000 feet (910 m) from the entrance to the rear termination. The entrance is relatively low, but the interior opens into spacious chambers with ceiling heights varying from 8 feet near the mouth to approximately 20 feet further inside. The tube ends at an underground lake. The water level fluctuates significantly based on seasonal precipitation and the local water table; during high water stands, the lake can extend to within 1,000 feet of the entrance. Before the arrival of settlers, the cave was known to the Northern Paiute people. Regional oral traditions and creation narratives referred to it. According to the Oregon Natural Desert Association and published oral histories, the cave is described as an "underworld" or origin place associated with the subterranean water. In the book Legends of the Northern Paiute: As Told by Wilson Wewa, the site plays a role in the tribe's traditional cosmology.

    Directions to Malheur cave via Google AI:

    Driving Directions from BurnsHead East on Highway 78: Leave Burns and drive east/southeast along OR-78 E for approximately 52 miles.

    Turn at Milepost 52: Watch for milepost 52 and the signs for the Tree Top Ranch, turning left onto the dirt road.

    Follow the Dirt Road: Travel "exactly" 3 miles along the dirt road, counting and passing four cattle guards.

    Final Approach: Immediately after the fourth cattle guard, turn left around the corral.

    Head west on the dirt track until you reach the cave entrance


Past events

19 Jun 2026 The Barlow Road Field Trip
6 Jun 2026 The Archaeology Roadshow- Central Oregon 2026
29 May 2026 Come Along on the Oregon Trail
21 May 2026 The Civilian Conservation Corps in Oregon- A Living Legacy- by Glenn Voelz
16 May 2026 Title: Pleistocene Mammal Rubs and Chinese Gold Rush Trails in the High Desert
13 Apr 2026 Stewardship Training 2026
19 Mar 2026 The Kam Wah Chung State Heritage Site and the Chinese Diaspora in Oregon by Don Hann
15 Jan 2026 "The Jackson County Rebellion" A Populist Uprising in Depression-Era Oregon by Jeff LaLande
18 Nov 2025 Fort Rock Sandals and the Ancient Basketry Traditions of the Northern Great Basin by Thomas Connolly
22 Oct 2025 Step Into the Ice Age
16 Oct 2025 Investigating Paleoindian Subsistence: Zooarchaeological Analyses of Connley Cave 5 Cultural Features by Miranda Harding
24 Sep 2025 Connley Caves and XRF Results by Katelyn McDonough and Richard Rosencrance
19 Sep 2025 Unraveling the Growth, Evolution and Disappearance of the Snow Creek Irrigation Company
5 Sep 2025 Sherman County Historical Museum in Moro
26 Jul 2025 Warm Springs Museum with Salmon Lunch
10 Jul 2025 Field Research /Canyon City /Kam Wah Chung
28 Jun 2025 Archaeology Roadshow 2025 in Harney County
13 Jun 2025 Fort Rock Cave Tour - Fort Rock State Natural Area
7 Jun 2025 Rimrock Draw Rockshelter: 18,000 Years of Deep History by Patrick O'Grady
7 Jun 2025 Archaeology Roadshow 2025 in Central Oregon
31 May 2025 Archaeology Roadshow 2025 in Portland
28 May 2025 Read & Write Workshop: Ancient People of the Lake (Children, Ages 3rd-5th Grade) by Eileen Gose
22 May 2025 Dry River Canyon Pictographs, Geology & Cultural Pathway
16 May 2025 The "Magic" of Archaeology
15 May 2025 Seeing the Landscape with Two Eyes: The Scientific Value of Nimiipuu (Nez Perce) and Indigenous Ethnogeology by Roger Amerman
20 Mar 2025 Rimrock Revisited by Patrick O'Grady
18 Feb 2025 Archaeology in Central Oregon and Unraveling the Growth, Evolution, and Disappearance of the Snow Creek Irrigation Company by Bob Timmer
16 Jan 2025 Ice and ocean constraints on early human migrations into North America along the Pacific Coast by Summer Praetorius, PhD
23 Nov 2024 Archaeology Roadshow 2024 - The Dalles Event
14 Nov 2024 Searching for Early Submerged Sites Along the Pacific Coast of North America by Dr. Loren Davis, and ASCO's Annual Meeting
2 Oct 2024 For Kids: Step Into the Ice Age at Becky Johnson Community Center
28 Sep 2024 Fish Lake Remount Depot - Santiam Wagon Road Exhibition Field Trip
19 Sep 2024 Over the River and Up the Hill: a Snapshot of Oregon Trail History on the John Day River by Ryan Griffin
14 Sep 2024 Eastern Santiam Wagon Road Tour – Redmond to Fish Lake
16 Aug 2024 ASCO's 30th Anniversary
9 Jul 2024 Connley Cave Rock Shelter Field Trip
22 Jun 2024 Archaeology Roadshow 2024 - Harney County Event
8 Jun 2024 ASCO Stewardship Picnic
1 Jun 2024 Archaeology Roadshow 2024 - Central Oregon Event
31 May 2024 Field Trip: Central Oregon WWII Aircraft Training History
6 Apr 2024 Stewardship Training
28 Mar 2024 What’s New at the Connley Caves and in Western Stemmed Tradition Research? by K. McDonough and R. Rosencrance
5 Feb 2024 Know Puzzles: Puzzling Out the Past by Eileen Gose
4 Jan 2024 Survivance and the Deep Great Basin Past by Dr. David Hurst Thomas
18 Nov 2023 Archaeology Roadshow 2023 - The Dalles Event
16 Nov 2023 Exploring Purpose and Context: Spirit Power, Doctoring, and Gambling Medicine in Klamath Basin Rock Art by Dr. Robert David
18 Oct 2023 Great Basin Anthropological Conference
7 Oct 2023 McKenzie Pass Toll Road
4 Oct 2023 Interactive Archaeology Presentation by Eileen Gose
21 Sep 2023 Prehistoric Bison Hunters of the Northern Great Basin
10 Sep 2023 Rock Art: More than Just Images by Eileen Gose
18 Jul 2023 Rimrock Draw Rockshelter Field Trip
24 Jun 2023 Archaeology Roadshow 2023 - Harney County Event
24 Jun 2023 Rock Art - Hart Mountain & Long Lake
13 Jun 2023 ASCO Board Meeting
11 Jun 2023 ASCO Stewardship Picnic
10 Jun 2023 Early Central Oregon Railroad Roads
27 May 2023 Archaeology Roadshow 2023 - Central Oregon Event
18 May 2023 Deschutes River Railroad War, 1909 - 1911 by Steve Lent
13 May 2023 Archaeology Roadshow 2023 - Portland Event
5 May 2023 Rock Art Field Trip “She Who Watches” & “Temani Pesh-Wah”
2 May 2023 Rock Art: More than Just Images by Eileen Gose
6 Apr 2023 Growing Up in the Ice Age: Were Children Drivers of Human Cultural Evolution? by Dr. April Nowell
16 Mar 2023 New Discoveries at the Cooper's Ferry Site in Western Idaho Push Projectile Technology Back to 16,000 years ago by Dr. Loren G. Davis
16 Feb 2023 The Roles and Research of the Museum of Natural and Cultural History Archaeology Field School by Katelyn McDonough
7 Feb 2023 ASCO Board Meeting
19 Jan 2023 12,600 Years of Perishable Technologies at Cougar Mountain Cave, Oregon by Richie Rosencrance
3 Jan 2023 ASCO Board Meeting
8 Dec 2022 Archaeology and the Human Experience at the Paisley Caves in the Northern Great Basin & General Meeting
6 Dec 2022 ASCO Board Meeting
1 Nov 2022 ASCO Board Meeting
20 Oct 2022 Water and Wind: Paleoenvironmental and Archaeological Correlations at Rimrock Draw Rockshelter
17 Oct 2022 Glass Buttes Day Trip
4 Oct 2022 ASCO Board Meeting
28 Sep 2022 Arnold Ice Cave Complex Walking Tour
22 Sep 2022 Evidence of Humans in North America during the Last Glacial Maximum
6 Sep 2022 ASCO Board meeting
21 Jul 2022 Connley Cave Rock Shelter Field Trip
30 Jun 2022 Waldo Lake History, Precontact to Present Times
7 Jun 2022 ASCO Board Meeting
21 May 2022 Pioneer Roads Field Trip with John Zancanella
13 May 2022 Tumalo Dam & 1914 Wimer Ranch Field Trip
12 May 2022 The Dam Fiasco at Bull Flat
3 May 2022 ASCO Board Meeting
1 May 2022 Example ASCO Field Trip
21 Apr 2022 Getting Blood From a Stone: Excavations at a Paleolithic Oasis in Jordan by Dr. April Nowell
5 Apr 2022 ASCO Board Meeting
17 Mar 2022 Wenas Creek Mammoth Dig by Patrick Lubinski
1 Mar 2022 ASCO Board Meeting
17 Feb 2022 15,000 Years of Great Basin Archaeology by Dennis Jenkins
3 Feb 2022 Oregon Historical Society presents: Centering Chinese History in Oregon: A panel discussion
1 Feb 2022 ASCO Board Meeting
13 Jan 2022 Connley Caves Talk by Katelyn Mcdonough
4 Jan 2022 ASCO Board Meeting
9 Dec 2021 Prehistoric Bison Hunters of the Northern Great Basin by Scott Thomas
2 Nov 2021 ASCO Board Meeting
14 Oct 2021 Archaeology of the Portland Area by Virginia Butler
5 Oct 2021 ASCO Board Meeting
30 Sep 2021 All Member Meeting
10 Sep 2021 Glass Buttes Obsidian Field Trip (cancelled)
7 Sep 2021 ASCO Board Meeting
17 Aug 2021 Pioneer Roads Field Trip (Cancelled)
22 Jul 2021 Connley Cave Rock Shelter Field Trip
13 Jul 2021 Rimrock Draw Rockshelter Field Trip
18 Jun 2021 Elk Lake Guard Station & Devil’s Pass Rock Art Field Trip
29 Apr 2021 April Presentation: Oregon Chinese Diaspora Project and gold mining in the John Day area by Donn Hann
18 Mar 2021 March Presentation: Tribal member and Archaeologist Dr. Robert David educates us on Shamanism and myths from a Modoc petroglyph site
18 Feb 2021 February Presentation: Dr. Loren G. Davis on Cooper's Ferry Site in Idaho
21 Jan 2021 January Presentation: Paul Claeyssens on How Archaeological Work is Effected by Wildfire
10 Dec 2020 December Presentation: Dr. Virginia L. Butler on The Ciwicen Village Site in Port Angeles, WA
19 Nov 2020 November Presentation: Dr. Michel Waller provides insights into our human evolution ​by examining tool-use in different species
17 Sep 2020 September Presentation: Dr. Dennis Jenkins on his latest findings from ​15,000-year-old sites in the Oregon High Desert
6 Oct 2017 Cascadia Cave with Tony Farque Field Trip
20 May 2017 Paisley Caves with Dennis Jenkins Field Trip
1 Jun 2016 Alvord Desert with Scott Thomas Field Trip
18 Jun 2014 Skull Creek Dunes with Scott Thomas Field Trip
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