Abandoned railway and canal from elevation data

Set colors on the trails at Orgeon Ridge; smooth out the ways in spots where the trails are visible in aerial imagery

These aren't driveways

Tidy up Overlook Trail

Another pond

Improve some pond outlines

Road alignment for Back Creek Road and waterway alignment for Back Creek

Road alignments around Gore

Streams going through Camp Rock Enon

Internal connecting trails at Camp Rock Enon

Better estimate of Camp Rock Enon's boundaries

Camp Rock Enon red and orange trails

The Camp Rock Enon speed limit is 10 mph

Camp Rock Enon's blue trail and some things around it

Clean up the roads in the main section of Camp Rock Enon

Road alignments for Perring Parkway

MD 41 is signed in the county but not the city; I made two relations, one for each region

Switch `official_ref` back to `ref` on MD 129 route relation; clean up relation membership for contiguous lines

Switch `official_ref` back to `ref` on MD 140 and US 1 route relations; clean up relation membership for contiguous lines

Missed a building in the last changeset