I chatted with the FS and sent an email. Here is the response I got. Guess we just have to keep using the 2016 maps on our phones.
In the past Black Hills National Forest has produced the color map as a convenience to the public. It was not something that we were required to do, but we had the capability so we provided that extra tools for our trail users. This year, due to some personal changes leaving positions uncovered, we have not been able to produce the colored map.
I am not sure what Avenza Is selling in their map store for $30. It could be a privately produced map, but it is not a Forest Service publication.
We hope to be able to provide the color version of the Motorized Vehicle Use Map in the future, but it may not be available in 2017. Please feel free to call me with any questions.
Forest Service Shield
Forest Recreation/Wilderness/Trails and Special Uses Program Manager
Region 2 - Black Hills National Forest
1019 N 5th Street
Custer, SD 57730