Manassas

The Start and Finish locations for all courses are next to the registration and download area. All courses have little climb and this is usual for this pretty much flat park. The map was partially updated during the course preparation. A few rootstocks (green X) have been added to the map. Many of the dot knolls indicated on the map no longer exist in the terrain or are quite indistinct. The "black circle" symbol indicates either Park Benches or Historical Markers. The "black x" illustrates rusting farm machinery or other human junk. Some of them are used as control features. All creeks and the main river were crossable the weekend before the event but they can be deep in some places especially after the rain last few days so choose your crossing point accordingly. There are barbed wire pieces from old ruined fences. Some of the missing ruined fences are mapped and probably, there are some that are not. No courses cross roads with vehicle traffic, but the first or/and the last legs may cross the parking lot, so watch out for moving vehicles when you start and finish. This is a pretty friendly terrain and it is good for moving up a level in course difficulty.

The map scale for the beginner (White and Yellow) courses is 1:5000. The scale for intermediate (Orange) and advanced (Green and higher) courses is 1:10000. The contour interval on all course maps is 2.5 meters contours, rather than the usual 5 meters, so the terrain looks stepper than actually is. Every course has at least 2 water controls. In addition, the advance course runners can use some of the beginner course water controls as they are marked with the refreshment symbol.

The vegetation on the map is not updated. Some parts of the semi-open areas are overgrown and now they are almost wood areas and are difficult for running.

Beginner (White and Yellow) courses use the large fields next to the parking lot. Some portions of the fields are mowed (bright yellow), and some are not (pale yellow). Unmowed areas have very tall grass and can be very difficult to pass through. The beginner courses do not cross the main river.

Advanced courses will cross some areas of deadfall (vertical green bars). There are few places with significant deadfall (closely spaced vertical green stripes) and it may be very difficult to pass through these areas. These areas will slow you down a lot, and it is better to be avoided.