The Capital Crescent Trail is the most popular trail in Maryland with over 1.5 million users every year.
Enthusiasts of all ages and recreational abilities use the Trail:

The Capital Crescent Trail between Connecticut Ave. and
Jones Bridge Road
The Trail is a natural sanctuary --
an extended park, lined with thousand of trees, including beech, sycamore, maples, tulip poplars, and black walnuts.
The trees shade hikers and bikers, and shelter deer, groundhogs, a variety of
hawks and woodpeckers, bluejays,
cardinals, chickadees, nuthatches,
catbirds, orioles, nuthatches, tufted
titmice, and wrens.
The trees also provide an important buffer between commercial downtown Bethesda and adjoining residential neighborhoods. They filter air and noise pollution and
provide a visual screen.
The trees bestow significant environmental benefits to an area that has lost its tree canopy at an alarming rate.