The first version of the contiguous digital map was compiled by Š. Káčer et al.(2005) under the terms of the geological project Digital Geological Map of the Slovak Republic at a scale of 1: 50 000. In addition to areal, line and point information, the following separate layers are available: a list of the background documents, classification of the data in terms of quality, a review of the scheme used for classification of geological units and structures. The areal information provided on the digital map includes: the unified legend and the original legend showing the characteristics and occurrence of individual lithotypes across the whole territory of Slovakia.

GEORH1M is a simplifield version of the geological map of the Republic of Croatia 1 :300 000, which is based on 61 map sheets of the Basic Geological Map 1:100 000 produced in the time period between 1962. and 1989. Map shows lithotostratigraphic units and tectonics of the Republic of Croatia. GEORH1M was edited specifically for the purpose of the OneGeology-Europe project. Map is completely made with GIS technology (ArcGIS 9.3.).

The GEOBG500 dataset was created in 1995 by digitizing the paper version of the Geological map of Bulgaria at a scale of 1:500 000, that was published in 1989. This consists of 2 flat coloured sheets covered the whole territory of Bulgaria. The map has been produced in a combined Bulgarian-English edition and was compiled using the Geological Map of Bulgaria at a scale of 1:100 000 as a base, combined with data from the National Geofund. The dataset is digitally integrated and available in MapInfo format.

Web Map Service (WMS) displaying the GEO_1M_1GE_RO dataset that has been created for the OneGeology-Europe project.

The GEOBG100 dataset was created during the period 1995-1997 by digitizing the paper version of the Geological map of Bulgaria at a scale of 1:100 000. This consists of 86 coloured flat sheets, covering the whole onshore territory of the country. The map is available in a Bulgarian or in an English edition. The dataset is digitally integrated and available in MapInfo and ArcGIS formats.

Geological map of the Quaternary of Slovakia at a scale of 1 : 500 000 compiled by J. Maglay et al. showing different types of Quaternary deposits according to their origin. The map plainly shows the spatial distribution and surface extent of all primary, as well as some selected "transitional" genetic types of Quaternary sedimentary and volcanic rocks in Slovakia. It presents a basic picture of the sequence of their evolution and their patterns of distribution and deposition. A component of the map is a lithostratigraphic classification of the Quaternary of Slovakia.

The GEO_200k_RO dataset has been created by vectorization of the paper map series: Geological Maps of Romania at a scale of 1 : 200 000, created during the years 1960-1969. This dataset was digitally processed using ArcGIS software as ESRI geodatabase format.

Geological Map of the Western Carpathians and Adjacent Areas at a scale of 1 : 500 000 compiled by J. Lexa et al.( 2000). The map contains both polyline and polygon layers. The basis used for the compilation of this map is the Geological Map of the Slovak Republic at a scale of 1:500 000, compiled by A. Biely et al.(1996) with amendments derived from the geological maps of the neighbouring countries.

1: 1,000,000 scale geological map was constructed from surface geology maps of Hungary of scale 1 : 200 000. It contains 31 different geological units of generalized pre-quaternary geological formations and quaternary sediments of different genetic types .

The database for geological map of Romania at 1:1 000 000 scale had been built on the basis of geological map built by an authors team in 1978 and is organized in two layers (Geologic Unit – lithostratigraphy and Geologic Structure – geological boundaries and faults) and two tables. This has been modified for harmonization in to OneGeology Europe project.