Narrow Gauge Way Park is a new and relatively unknown Ann Arbor park. As you descend from the entrance and turn right towards the GZ, to your left is a "kame" (pronounced "kaym"), a hill of stratified sand and gravel formed relatively recently (in geological time, anyway) by glacial meltwater -- around the end of the last ice age 10,000 to 16,000 years ago. My kids Mango and Tomato like clambering up the kame's steep sides whenever we come walking here. The sandy and gravelly parts of the stream (a tributary of Miller's Creek) also provide evidence of the glacial history of this area.
Congratulations to CFKAA: FTF within a mere 50 minutes!