Mini journal logo  Home Issue Contents All Issues

Recording Data from Metal-Detecting Activities in the Czech Republic: The Portal of Amateur Collaborators and Register of Individual Finds (AMCR-PAS)

Petr Pajdla, Olga Lečbychová, David Novák, Róbert Antal, Balázs Komoróczy, Tomáš Chlup and Jan Mařík

Cite this as: Pajdla, P., Lečbychová, O., Novák, D., Antal, R., Komoróczy, B., Chlup, T. and Mařík, J. 2023 Recording Data from Metal-Detecting Activities in the Czech Republic: The Portal of Amateur Collaborators and Register of Individual Finds (AMCR-PAS), Internet Archaeology 64. https://doi.org/10.11141/ia.64.13

Summary

This article discusses the importance of the Portal of Amateur Collaborators and the Register of Individual Finds of the Archaeological Map of the Czech Republic (AMCR-PAS) in preserving data from metal-detecting activities in the Czech Republic. The context and legal framework of metal detecting in the country are explained along with the establishment of AMCR-PAS. The collaboration between amateur and professional archaeologists is also discussed. The recorded finds are analysed in terms of chronological, typological and spatial distribution. The AMCR-PAS system is recognised as a crucial tool for the preservation of data from metal detecting, and provides a valuable resource for national and transnational archaeological research, enabled especially by aggregation of AMCR-PAS data in the ARIADNE infrastructure. Overall, this article highlights the significance of the AMCR-PAS system and its potential to contribute to the understanding of the country's rich archaeological heritage. It also examines the shortcomings and challenges that accompany applying the system in practice.

  • Google Scholar
  • Keywords: Metal detecting, citizen science, data preservation, portable antiquities
  • Accepted: 26 July 2023. Published: 31 October 2023
  • Funding: This article was funded by the European Commission under the Horizon 2020 ARIADNEplus grant agreement n. 823914.
  • PDF download (main article text only)

Corresponding author: Petr PajdlaORCID logo
pajdla@arub.cz
Institute of Archaeology of the Czech Academy of Sciences, Brno

Olga LečbychováORCID logo
lecbychova@arub.cz
Institute of Archaeology of the Czech Academy of Sciences, Brno

David NovákORCID logo
novak@arup.cas.cz
Institute of Archaeology of the Czech Academy of Sciences, Prague

Róbert Antal
antal@arub.cz
Institute of Archaeology of the Czech Academy of Sciences, Brno

Balázs KomoróczyORCID logo
komoroczy@arub.cz
Institute of Archaeology of the Czech Academy of Sciences, Brno

Tomáš ChlupORCID logo
chlup@arup.cas.cz
Institute of Archaeology of the Czech Academy of Sciences, Prague

Jan MaříkORCID logo
marik@arup.cas.cz
Institute of Archaeology of the Czech Academy of Sciences, Prague

Full text

Figure 1: Map of the Czech Republic with the number of archaeological organisations licensed in a given area summarised on a hexagonal grid. Out of the 100 organisations, there are 8 with a licence for the whole territory of the Czech Republic

Figure 2: The workflow of recording a find under the AMCR-PAS scheme

Figure 3: Screenshot of the AMCR-PAS finds recording interface. The exact location of the find on the map was changed to a random spot

Figure 4: Screenshot of finds published in the AMCR Digital Archive

Figure 5: Screenshot of a record published in the ARIADNE Portal

Figure 6: An overview of finds recovered per year. The years corresponding to finds recorded retrospectively, i.e. found before the AMCR-PAS launch, are in grey

Figure 7: A network of active collaborations. The blue squares represent archaeologists from licensed organisations and the yellow circles amateur collaborators. The size of the circle indicates the number of finds recorded by the given collaborator. Chosen regional clusters are labelled the same as on the map in Figure 10: A – South Moravian Region, B – Boskovice area, C – Kutná Hora District, D – mid-Central Bohemian Region

Figure 8: A histogram of the number of finds reported by individual collaborators. The strongly right-skewed distribution shows that most of the collaborators recorded between 1 and 20 finds although in some cases, collaborators recorded more than 100. The figure includes finds from all processing states

Figure 9: Number of finds recovered in different months showing seasonality in the metal detecting practice

Figure 10: Map of the Czech Republic with a spatial distribution of recorded finds (with log-scaled colour range). The exact locations of the finds are generalised on a hexagonal grid with a cell size of 25km². The figure includes finds from all processing states. Chosen concentrations of finds are labelled the same as in the network in Figure 7: A – South Moravian Region, B – Boskovice area, C – Kutná Hora District, D – mid-Central Bohemian Region

Figure 11: A treemap chart of material specifications of the recorded artefacts with the highest proportion of metallic finds

Figure 12: A treemap chart of artefact types recorded in AMCR-PAS

Figure 13: Aoristic sum of finds in time with visible peaks. The Bronze Age (yellow), Roman (green) and Late Medieval (blue) periods are highlighted

Act No. 20/1987 Coll., on State Monument Care [Zákon č. 20/1987 Sb., o státní památkové péči].

Böhm, J. 1941 'K vládnímu nařízení o ochraně archeologických památek', Zprávy památkové péče 5(6), 83–85.

Čižmář, M. 2006 'Detektor ano, nebo ne? Archeologie a detektory kovů', Archeologické rozhledy 58, 284–90.

Csardi, G. and Nepusz, T. 2006 'The igraph software package for complex network research', InterJournal, Complex Systems 1695. http://igraph.org

Dobat, A.S., Deckers, P., Heeren, S., Lewis, M., Thomas, S., and Wessman, A. 2020 'Towards a cooperative approach to hobby metal detecting: the European Public Finds Recording Network (EPFRN) vision statement', European Journal of Archaeology 23(2), 272–92. https://doi.org/10.1017/eaa.2020.1

Felicetti, A., Meghini, C., Richards, J. and Theodoridou, M. 2023 The AO-Cat Ontology (1.2), Zenodo. https://doi.org/10.5281/zenodo.7818375

Frerebeau, N. 2022 Kairos: Analysis of Chronological Patterns from Archaeological Count Data, R package version 1.2.0 https://doi.org/10.5281/zenodo.5653896

Goláňová, P., Komoróczy, B., Kmošek, M., Kolníková, E., Vlach, M. and Zelíková, M. 2020 'New metal and glass finds from the Late Iron Age in South Moravia (CZ). The contribution of citizen science to knowledge of the La Tène settlement structure in the Břeclav Region', Přehled výzkumů 61(2), 9–41.

Komoróczy, B. 2022 'Archaeology, metal detecting, and citizen science in the Czech Republic', Advances in Archaeological Practice 10(3), 322–35. https://doi.org/10.1017/aap.2022.15

Komoróczy, B., Vlach, M. and Zelíková, M. 2017 'Dokumentace, publikace a interpretace detektorových nálezů na příkladu spon typu Jobst 4F' in E. Droberjar and B. Komoróczy (eds) Římské a germánské spony ve střední Evropě (Archeologie barbarů 2012), Spisy Archeologického ústavu AV ČR Brno 53, Brno: Institute of Archaeology, Czech Acad. Sci., Brno. 31–61.

Kuna, M. 2006 'Detektory kovu v archeologii', Archeologické rozhledy 58, 323–28.

Kuna, M., Demján, P., Maříková-Kubková, J., Gojda, M. and Hasil, J. (eds) 2015 Structuring Archaeological Evidence: the archaeological map of the Czech Republic and related information systems, Prague: Institute of Archaeology, Czech Acad. Sci., Prague.

Kuna, M. and Novák, D. 2019 Archaeological Map of the Czech Republic (AMCR) Periods Vocabulary. https://n2t.net/ark:/99152/p0wctqt [Last accessed: 30 March 2023].

Lacko, J. 2023 'RCzechia: spatial objects of the Czech Republic', Journal of Open Source Software 8(83). https://doi.org/10.21105/joss.05082

Lečbychová, O., Komoróczy B., Pajdla, P., Novák, D., Mařík, J., Chlup, T. and Antal, R. in press 'The Portal of Amateur Collaborators and Register of Individual Finds (AMCR-PAS): bringing the civic science data to the digital in the Czech Republic' [manuscript submitted for publication], in CHNT Editorial Board (eds), Proceedings of the 27th International Conference on Cultural Heritage and New Technologies, November 2022, Heidelberg: Propylaeum.

Mařík, J. 2013 'Amateurs and professional archaeologists: legal models for their cooperation in the Czech Republic' in A. Lagerlöf (ed) Who Cares? Perspectives on Public Awareness, Participation and Protection in Archaeological Heritage Management, Jambes: Archaeolingua. 105–8.

Navrátil, A. 2015 'Česká archeologie a čtvrt století užívání detektorů kovů', Přehled výzkumů 56(1), 119–30.

Pajdla, P. 2022 Mapa archeologických organizací [Map of Archaeological Organizations], source code: https://github.com/ARUP-CAS/aiscr-oao, application: https://oao.aiscr.cz/. [Last accessed: 30 March 2023].

Pebesma, E. and Bivand, R. 2023 Spatial Data Science: With Applications in R, New York: Chapman and Hall/CRC. https://doi.org/10.1201/9780429459016

R Core Team 2023 R: A language and environment for statistical computing, R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/ [Last accessed: 30 March 2023].

Richards, J. and Niccolucci, F. (eds) 2019 The ARIADNE Impact, Budapest: Archaeolingua Foundation. https://zenodo.org/record/4319058

Smrž, Z. 2006 'Archeologové, mrcasníci a detektoráři', Archeologické rozhledy 58, 321–23.

Statement of the Ministry of Culture regarding the term 'archaeological find' within the provisions of S. 23, Act No. 20/1987 Coll., on State Monument Care, in relation to remains of military equipment from World War II, 26 January 2021, ref. no. MK 6017/2021 OPI [Stanovisko Ministerstva kultury k pojmu 'archeologický nález' v rámci ustanovení § 23 zákona o státní památkové péči ve vztahu k pozůstatkům vojenské techniky z období 2. světové války, ze dne 26. 01. 2021, č. j. MK 6017/2021 OPI].

Thomas, S., Wessman, A., Pitblado, B.L., Rowe, M. and Schroeder, B. 2022 'Professional–collector collaboration: global challenges and solutions', Advances in Archaeological Practice 10(3), 245–48. https://doi.org/10.1017/aap.2022.20

Vencl, S. 2006 'Detektoráři jsou specializovaní zloději, něco na způsob bytařů', Archeologické rozhledy 58, 307–9.

Vích, D. 2006 'Detektory kovů v archeologii: Úhel pohledu regionálního archeologa', Archeologické rozhledy 58, 301–6.

Wickham, H. 2016 ggplot2: Elegant Graphics for Data Analysis, New York: Springer-Verlag.

Wickham, H., Averick, M., Bryan, J., Chang, W., McGowan, L.D., François, R., Grolemund, G., Hayes, A., Henry, L., Hester, J., Kuhn, M., Pedersen, T.L., Miller, E., Bache, S.M., Müller, K., Ooms, J., Robinson, D., Seidel, D.P., Spinu, V., Takahashi, K., Vaughan, D., Wilke, C., Woo, K. and Yutani, H. 2019 'Welcome to the tidyverse', Journal of Open Source Software 4(43). https://doi.org/10.21105/joss.01686

Wickham, H., François, R., Henry, L., Müller, K. and Vaughan, D. 2023 dplyr: A Grammar of Data Manipulation, R package version 1.1.0 https://CRAN.R-project.org/package=dplyr [Last accessed: 30 March 2023].

Wilkins, D. 2021 treemapify: Draw Treemaps in 'ggplot2', R package version 2.5.5 https://CRAN.R-project.org/package=treemapify [Last accessed: 30 March 2023].

Internet Archaeology is an open access journal based in the Department of Archaeology, University of York. Except where otherwise noted, content from this work may be used under the terms of the Creative Commons Attribution 3.0 (CC BY) Unported licence, which permits unrestricted use, distribution, and reproduction in any medium, provided that attribution to the author(s), the title of the work, the Internet Archaeology journal and the relevant URL/DOI are given.

Terms and Conditions | Legal Statements | Privacy Policy | Cookies Policy | Citing Internet Archaeology

Internet Archaeology content is preserved for the long term with the Archaeology Data Service. Help sustain and support open access publication by donating to our Open Access Archaeology Fund.