Benjamin Barna, Ph.D.


Dr. Barna is a Senior Archaeologist for the ASM Hawai‘i office. He earned his Ph.D. in Anthropology from the University of Nevada in 2013, and his dissertation focused on the evolution of the Hawaiian ranching community in the 19th and 20th centuries. Dr. Barna has over 11 years of professional archaeological experience and has worked on a variety of projects throughout Hawai‘i Island, Nevada, California, and Arizona. His professional duties have included inventory and reconnaissance surveys, excavation, site recordation, construction monitoring, GIS, literature searches, historical research, technical report write-ups, Section 106 compliance, and artifact identification, analysis, and cataloguing. He has taught anthropology and archaeology classes at University of Nevada, Reno, and Truckee Meadows Community College in Reno, Nevada. Dr. Barna formerly served as a Surface Warfare Officer in the U.S. Navy.

David Iversen, M.A., RPA


Mr. Iversen has over 21 years of experience in cultural resource management in the Pacific Northwest Coast, Plateau, Great Basin, and southern California. He has supervised and conducted archaeological field reconnaissance, testing and data recovery excavations, construction monitoring, and laboratory analysis. He has worked closely and successfully with Native American Tribal members, government agency representatives, construction personnel, and environmental management professionals. Mr. Iversen is the lead author of more than 200 cultural resource management technical reports, and has co-authored more than 50 technical reports. He has analyzed the lithic, ceramic, and shell artifacts, as well as the marine invertebrate remains, for several archaeological projects, and written portions of technical reports documenting the results of analyses. Most recently, he has conducted a series of survey and monitoring projects for the U.S. Army Corps of Engineers, U.S. Department of Fish and Wildlife, U.S. Forest Service, and the USDA in Washington State. In his role as Principal Investigator, Project Manager and Director for ASM’s Stanwood, Washington office, Mr. Iversen has successfully coordinated, managed, and completed projects that comply with DAHP, EO 05-05, and NHPA requirements for concurrent cultural resources surveys as well as studies for various federal and state agencies.

Don Laylander, M.A.


Mr. Laylander has 35 years of professional experience in archaeological fieldwork, research, and cultural resource management throughout California. He earned his M.A. with a thesis synthesizing and evaluating data on the prehistory of Baja California. In 67 monographs and articles and 33 unpublished conference papers, he has discussed and contributed to diverse approaches for reconstructing and interpreting the prehistory of the Californias, integrating ethnographic and linguistic as well as archaeological sources of information. His professional duties have involved carrying out scores of archaeological surveys, as well as supervising, conducting, analyzing, and reporting archaeological evaluation and data recovery excavations, preparing compliance documents for Section 106 of the National Historic Preservation Act (NHPA) and the California Environmental Quality Act (CEQA), overseeing and managing archaeological contracts, and assisting in the development of agency cultural resource policy guidelines.

James Daniels, M.A., RPA


Mr. Daniels has over 12 years of experience in cultural resources management and over three years of experience in academic lab and field research. After completing his Bachelor’s degree, he volunteered at the North Carolina Office of State Archaeology until acquiring a permanent position with a cultural resources consulting firm located in Chapel Hill, North Carolina. While working on his Ph.D., Mr. Daniels has continued as Senior Archaeologist at ASM and has served as Principal Investigator and/or Project Manager on various archaeological monitoring, survey, evaluation, and data recovery projects in Southern California. He has developed new strategies for archaeological site condition and assessment monitoring for military installations that integrate GIS, photogrammetry, and digital field notation on handheld tablets. Data collected in the field can be viewed in real time by senior staff in the office and clientele to ensure quality and accuracy in the data that is collected. Mr. Daniels has also refined previously collected data and written detailed analytical reports on the results of previous geophysical investigation projects. Mr. Daniels also employs portable X-ray fluorescence (pXRF) in ceramic sourcing projects, soil analyses, and analyses of groundstone artifacts.

Matthew Clark, B.A.


Mr. Clark is a Senior Archaeologist for the ASM Hawai‘i branch, and has 17 years of professional archaeological experience. He has worked on projects throughout the Hawaiian Islands (Hawai‘i Island, Maui, O‘ahu, and Kaua‘i), and has also participated in projects in Vermont, California, Iowa, New Jersey, and Anguilla. Mr. Clark earned his in Anthropology from the University of Vermont in 1998. Well-versed in all aspects of archaeology, Mr. Clark has extensive experience in all aspects of project and laboratory management, including, but not limited to inventory and reconnaissance surveys, preservation planning, burial treatment planning, data recovery, site testing, excavation, archaeological monitoring, feature restoration, artifact identification and cataloguing, site recordation, GIS, community consultation, record searches, historical background research, Section 106 compliance, and technical report write ups. Mr. Clark is currently pursuing his M.A. in Heritage Management at the University of Hawai‘i at Hilo.

Montana Long, M.S.


Mr. Long has 13 years of experience conducting professional and academic archaeological research. He received his M.S. in Anthropology from the University of Oregon in 2007. Mr. Long has been involved in dozens of prehistoric and historic survey, site testing, data recovery and GIS data management projects in Oregon, Nevada, Idaho and southern California. In July of 2009, Mr. Long was appointed Manager of GIS and Graphics for ASM's Great Basin and Pacific Northwest offices. In this position, his responsibilities include overseeing the production of all maps and graphics included in CRM reports and in DPR or IMACS site forms for all projects in the Reno office, as well as assisting the other offices on an as-needed basis. He produces maps for use by crews in the field and supplemental maps that facilitate project design and field access. He is also responsible for gathering and maintaining an extensive library of background GIS data, managing all project-related GIS data and conducting post-field analysis of GIS data gathered during surveys and excavations.

Sarah Stringer-Bowsher, M.A., RPH


Ms. Stringer-Bowsher has 12 years of professional experience as an Historian. She earned her M.A. through public history course work in historical research methods, applied history, museology, and historic preservation. As the Senior Historian for ASM, Ms. Stringer-Bowsher focuses on developing research-based historic contexts, which is the essential foundation for both architectural history and historical archeology site assessments and evaluations. In addition to creating local, project-specific histories and historic contexts, Ms. Stringer-Bowsher prepares land use histories for a multitude of applications including ESA Phase I site assessment reports and cultural resource site assessments. Ms. Stringer-Bowsher also prepares historic resource evaluations of buildings, structures, and objects in compliance with CEQA, NEPA, Section 106, and local registers. She exceeds the Secretary of the Interior's Professional Qualifications Standards as an Historian.

Shannon Mahoney, Ph.D., RPA


Ms. Mahoney has over 20 years of experience in professional archaeology. Her technical expertise centers on historical archaeology, bioarchaeology, and public engagement. She has served as a field archaeologist for both private and non-profit consulting firms and has served as a field supervisor for academic and compliance projects. Ms. Mahoney has considerable experience with Section 106 and Section 110 requirements of the National Historic Preservation Act in California, Nevada, and Virginia, as well as CEQ) requirements. She has worked on survey, testing, and data recovery projects under the review of the Bureau of Land Management, National Park Service, Army Corps of Engineers, Department of Defense (Army and Navy), and the California Department of Transportation. Ms. Mahoney currently serves ASM as Senior Archaeologist and meets the Secretary of the Interior Professional Qualification Standards for Archaeology and History.

Teresa Gotay, M.A.

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Ms. Gotay is a Senior Archaeologist at the ASM Hawai‘i branch, and has over 17 years of diverse education, training, and professional experience. She has worked on projects on Kaua‘i and Hawai‘i Island, and has also participated in projects in Arizona, Louisiana, New Mexico, and Texas. Ms. Gotay earned her B.A. degree in Anthropology from Tulane University in 2004 and her M.A. degree in Anthropology from Texas State University in 2010. Ms, Gotay has developed comprehensive knowledge of archaeological field methodology, laboratory techniques, and technical writing from her professional and academic pursuits. Her archaeological field experience includes management of field crews, linear and block surveys, data recovery, test unit excavation, mechanical trenching, monitoring, and cultural informant interviews. In addition to archival background research and artifact curation. She is also an osteologist with over a decade of specialized experience in the location, recovery, and analysis of human remains from prehistoric, historic, and modern contexts in various stages of decomposition during cemetery relocation projects, and various excavations. She is well-versed in the estimation of biological profile, as well as the interpretation of trauma, pathology, and taphonomic processes.