# New objects on base maps **URL:** \ **Category:** General\ **Created:** [January 25, 2025, 4:13pm UTC](https://community.purpleair.com/t/new-objects-on-base-maps/11381 "2025-01-25T16:13:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![BlueJay](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/bluejay/32/3682_2.png) [@BlueJay](https://community.purpleair.com/u/BlueJay)\ **Post date:** [January 25, 2025, 4:13pm UTC](https://community.purpleair.com/t/new-objects-on-base-maps/11381/1 "2025-01-25T16:13:55Z")
![IMG_0956](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/c/c8584416ca4a296e0843f698778d398164d3c7eb.jpeg) What does the small dotted line that just started appearing on the map represent? Does it show power distribution lines, fiber optic lines, water mains or something else? ---
**Author:** ![lucienve](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/lucienve/32/4281_2.png) [@lucienve](https://community.purpleair.com/u/lucienve)\ **Post date:** [January 27, 2025, 2:11pm UTC](https://community.purpleair.com/t/new-objects-on-base-maps/11381/2 "2025-01-27T14:11:24Z")
The underlying map for PurpleAir comes from OpenStreetMap, as is noted in the small print in the lower right hand corner. Going there and looking at the map key, it shows that a dotted red line is a ‘Footway’ (sidewalk). ![osm](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/3/3ea4bc51bfeaabfbac9e44a34314baae0c576d3a.jpeg) ---
**Author:** ![BlueJay](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/bluejay/32/3682_2.png) [@BlueJay](https://community.purpleair.com/u/BlueJay)\ **Post date:** [January 27, 2025, 2:54pm UTC](https://community.purpleair.com/t/new-objects-on-base-maps/11381/3 "2025-01-27T14:54:33Z")
Thank you @lucienve! I never would have figured that out.