Matthew Henson was the first African American Arctic Explorer, which kind of makes him like a geocacher in the winter climates here. The park named after him is a greenway along the Turkey Branch of Rock Creek. The park runs from Aspen Hill to Layhill, Maryland, linking the Rock Creek Trail with the Sligo Creek Trail.
You are looking for a matchstick container with camo. When I initially hid this one, I experimented with hiding spots in this area, and when I placed this cache, I had trouble retrieving it. After finally getting it out of its hiding spot, I decided that the pain I had retrieving the cache can be yours, too! Be sure to replace camo when done.