Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. State Route 121
(SR 121) is a 7.67-mile (12.34 km) long state highway located entirely
in Thurston County, Washington, United States. The highway forms a loop
off of Interstate 5 (I-5) near Maytown.SR 121 begins at a folded diamond
interchange, exit 95 off of I-5, and travels east along Maytown Road.
Crossing Beaver Creek twice, the highway travels through lightly
populated land, passing the small community of Maytown, before crossing
the creek a third time, turning north onto Tilly Road. Immediately upon
turning north, the highway crosses over a single track, which the
highway paralleled from I-5 to Tilly Road, before passing east of Deep
Lake. The highway crosses through Millersylvania State Park before
turning west along 93rd Avenue to its northern terminus at exit 99 on
I-5.