Alternatives to Pmproject.org - Similar Sites & Competitors
Principal Meridian Project
Explore and contribute photos and stories of historically significant land survey points across the U.S.
Discover and document historic land survey markers
The Principal Meridian Project invites you to explore important land survey points that reference most U.S. land. You can participate by photographing these sites and sharing your experiences.
The site focuses on collecting images of initial points and their surroundings, along with narratives about your journey to find them. It’s designed for history buffs and geography enthusiasts interested in these landmark markers.
By contributing, you help preserve and share the history tied to these land reference points, making it a collaborative effort to document an important part of American geography.
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GeoJSON.org explains and documents the GeoJSON format, helping you understand and use geographic data structures for mapping and GIS projects.
GeoNode helps you create, manage, and share geospatial data on the web, making it easy to build and maintain geospatial information systems (GIS).
Browse and find coordinate reference systems (CRS) for mapping and GIS projects. Access codes, data, and tools for accurate spatial referencing.
GeoServer lets you publish, share, and manage geospatial data online with open standards. Easily connect and serve spatial data from various sources.
MapIt lets you match UK postcodes or map points to local government and administrative areas, making it easy to connect locations with boundaries.
Mapnik is an open-source GIS toolkit for high-quality map rendering and geospatial data processing using C++, Python, or Node.js.
Explore PROJ's documentation to learn about powerful open-source tools for transforming geospatial coordinates and cartographic projections.
deegree is open source software for managing, visualizing, and sharing geospatial data using open standards for spatial data infrastructures.
OneGeology connects global geological surveys, offering access to worldwide geoscience data, maps, and resources for professionals and enthusiasts.
OpenLayers is a powerful open-source library for building interactive maps and geospatial applications on the web, with plenty of examples and docs.
OSGeo is a global foundation supporting open source geospatial projects, connecting users with GIS tools, resources, and a collaborative community.
Explore, create, and share digital maps and information about ancient places worldwide with this open, community-driven historical GIS platform.
H3 offers a hexagonal grid system for mapping and analyzing geographic data, with open-source tools and APIs for developers and data scientists.
Edit, simplify, and convert map data files right in your browser. Mapshaper makes working with geographic data easy, fast, and accessible online.
GPlates offers interactive desktop tools for visualizing plate tectonics, helping users explore and analyze the movement of Earth's plates over time.
QField is a mobile-friendly app for efficient geospatial data collection, letting you gather and manage mapping and surveying info right in the field.
Explore and analyze environmental data with interactive maps and tools to support research, learning, and sustainable stewardship of natural resources.
GeoPackage is the official site for an open, portable format to store and share geospatial data, supported by the Open Geospatial Consortium.
52°North develops innovative geo-information technologies and tools, supporting research and collaboration in spatial data and GIS solutions.
Worldwide Pmproject.org Alternatives
overpass turbo lets you run custom map data queries on OpenStreetMap and visualize results directly in your browser. No software install needed.
Explore S2 Geometry, a GIS platform for mapping and spatial data using a 3D sphere model—ideal for developers and geospatial projects.
Find guides, documentation, and tools to help you get the most out of ArcGIS with this resource hub for GIS users and developers.
Explore interactive maps and data tools from the USGS to view geographic, energy, and environmental information for research or planning needs.
Edit and manage OpenStreetMap data with JOSM, a tool for loading GPS tracks, background imagery, and making detailed map edits from your computer.
basemap.at offers detailed Austrian maps and GIS tools, providing up-to-date geospatial data for exploring, viewing, and using online or offline.
Queensland Globe lets you explore interactive maps and location data for Queensland, Australia, offering easy access to a wide range of geographic information.
EagleView offers advanced GIS mapping, aerial imagery, and analytics tools for precise planning, monitoring, and data-driven decision-making across industries.
Geoportal.de offers access to interactive maps and geospatial data for Germany, helping you explore, analyze, and use geographic information online.
Find US and Canadian locations or coordinates with ease. Geocoder.ca lets you quickly look up, map, and convert addresses or lat/long data online.
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