Here’s a roundup of a few meshtastic map services…
MeshMap
MeshMap uses data from the official Meshtastic MQTT server. Nodes are updated every minute and drop off the map if not seen for 24 hours.

Mpowered247 Map
The Mpowered map shows a heatmap when you zoom out.

Liam Cottle’s Map
https://meshtastic.liamcottle.net
Liam’s map runs off of data from a private MQTT server
Then cool thing about Liam’s map it it can show connection lines between nodes:

K1RA Meshtastic Map
K1RA has a good map for the area of Virginia just outside of Washington DC. They use their own MQTT server and utilize Liam Cottle’s map software to map their mesh.

Friendly Dev Map
https://meshtastic-map.friendlydev.com
The Friendly Dev Map aggregates from a few sources including the Mpowered map.

Paraguide Map
Shows a few nodes using MQTT.
