The map should be announced, not only that it's an interactive map region, but what it depicts. The detail of that description should be up to the author, but I think location, scale, special content descriptions would be appropriate in many cases.
More detailed location content should actually be in the map and exposed to visual and non-visual users alike, as features.
See related links:
Maps4HTML/MapML.js#736
https://www.tpgi.com/what-is-an-accessible-name/
https://www.w3.org/2020/maps/report#accessibility-a11y
https://www.w3.org/2022/09/12-m4h-minutes.html#:~:text=what%20is%20actually%20displayed%20on%20the%20map
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figcaption
https://maps4html.org/web-map-doc/docs/elements/map-caption/
The map should be announced, not only that it's an interactive map region, but what it depicts. The detail of that description should be up to the author, but I think location, scale, special content descriptions would be appropriate in many cases.
More detailed location content should actually be in the map and exposed to visual and non-visual users alike, as features.
See related links:
Maps4HTML/MapML.js#736
https://www.tpgi.com/what-is-an-accessible-name/
https://www.w3.org/2020/maps/report#accessibility-a11y
https://www.w3.org/2022/09/12-m4h-minutes.html#:~:text=what%20is%20actually%20displayed%20on%20the%20map
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figcaption
https://maps4html.org/web-map-doc/docs/elements/map-caption/