Harry L. Simpson County Park has over 175 acres of land with a 75-acre lake. It is located on Marshall Road between Big Bend and Hwy. 141 on the border between Kirkwood and Valley Park.
Simpson Park has two trails:
Blue Heron Trail follows the south side of the lake a total of 0.8 miles. BLUE line on trail map.
River Walk Trail is paved and flat 1.6 miles in length one way. It goes South leaving the park, crossing Marshall Road and at that parking lot, connects to the Meramec Greenway which follows along the Meramec River. Heavily used for walking, running, biking and dog walking; especially on the weekends. RED line on trail map.
From the Marshall Road parking lot you can take the Greenway trail east to Greentree Park or west toward Hwy. 141 and Arnold’s Grove.