Thank you for such a thoughtful reply! Yes, sharing what works and what doesn't your with respect to your tools and procedures would benefit other NGOs working in rural areas-- no sense in others recreating the wheel, so speak.
I really appreciate your initiative in getting people together for a Mapathon. It sounds like a great way to get started!
You are absolutely right--where you live should not determine whether you live. I think your organization's idea to use mapping technology in order to better track and target interventions could yield measurable results.
Having partners/staff with experience coordinating and carrying out mapping activities or outreach will help this project immensely. Has your organization done any kind of mapping before? Some things to consider for the project might be: identifying who will help orchestrate the data collection in the field (will he/she/they have mapping experience?), staff training, data collection plans/timelines, and what tools will be necessary (handheld GPS, cell phone, computers, etc.) for the project.