Gretel Trail & Field Mapping

Gretel is the professional field documentation tool designed for trail builders, park managers, botanical garden curators, forestry teams, and land stewards who need precise, reliable data collection in the field. Seamless Personal Device Integration Create detailed trail maps with GPS precision for new trail construction, existing trail documentation, and maintenance planning. Record exact routes with customizable accuracy settings. Automatically calculate trail length and elevation profiles essential for accessibility compliance and difficulty ratings. Comprehensive Field Documentation Document everything that matters for professional land management. Mark invasive species locations, infrastructure maintenance needs, damaged signage, erosion issues, safety hazards, and botanical specimens. Each point captures detailed descriptions, custom categories, visual coding systems, and photo capture that integrate with your existing management protocols. Seamless Personal Device Integration Sync your field data automatically across all your Apple devices signed into the same iCloud account. Start data collection on your iPhone in the field, review and refine on your iPad or Apple Silicon Mac — all with the same up-to-date information. No additional cloud services or IT infrastructure required for individual workflow management. Industry-Standard Data Export Export trail data in formats that integrate directly with GIS systems, CAD software, and municipal databases. Trail routes export as geoJSON, GTX, KML, and TCX files. Point data exports as CSV, geoJSON, JSON, or KML for seamless integration with ArcGIS, QGIS, AutoCAD, and other professional mapping platforms. Instant Team Communication Share critical findings immediately - safety hazards, equipment failures, or urgent maintenance needs can be communicated instantly to supervisors and maintenance crews with exact GPS coordinates and photographic documentation. Professional Use Cases: * Trail construction and routing documentation * Botanical garden specimen mapping and maintenance * Forest management and invasive species tracking * Park infrastructure maintenance planning * Environmental compliance documentation * Research site establishment and monitoring