Sound maps are digital geographical maps that emphasize the acoustic/sonic representation of a specific location. Sound maps associate or link landmarks (e.g. streets, building, parks, etc.) and soundscapes. The purpose is to represent a specific place in sound rather that visuals.
Great music composition project for your high schoolers!
Compose a Digital Sound Map with your students
The most straightforward method is mapping and embedding sound files on an existing map program e.g. Google Maps or Mapme. Try https://mapme.com/
Note: I found mapme.com the simplest online mapmaker and very user friendly. You are able to upload images and video on the free version. Audio requires a subscription. Record your sound as video with black screen to circumvent the subscription.