World of O - Omaps | Collection of maps and courses people have posted from around the world. (can also look at LiveLox, Orange and Usynligo for courses with affiliated maps)
OUSA | Club Development - Mapping
https://orienteeringusa.org/resources/club-development/#mapping
OUSA YMP [Youth Mapping Project]
YMP site - Youth mappers gain great experience and can earn remuneration too.
YMP Outline information of process and guidelines for mapping
Using your map:
USGS Map Scales - PDF Explains and shows what map scales mean.
Willard's Wood [Chiesa Farm, Diamond Middle School] Lexington MA - mapping project:
https://drive.google.com/drive/folders/1Hk-2f2Gp9OCzbETxXtqdyh1E9F6dd37Q?usp=sharing
OCAD - robust subscription model Orienteering basemap & map creation software. It is vector graphic based [like Adobe Illustrator & Inkscape].
OCAD sketch app [free, but requires OCAD license to commit changes made in app to OCAD map file]
OOM - OpenOrienteering Mapper [freeware]
Data sources & WebApps
MassMapper - Online web app service provided by MassGIS (a state governmental service; data is localized to MA only) Filled with lots of useful & accessible data. MassMapper User Guide
NOAA - Online web app service providing imagery, land cover & LiDAR elevation/contour data (generated or point cloud).
USGS - What is LiDAR data and where can I download it? | US National Map LiDAR Explorer
'Easter egg': Drive folder w/ OCAD, PDFs & some data/materials. Still interesting to look at, however NTOA has provided the actual map