It was named for the limestone bed of the Johnson Creek which flows through the area.
A large segment roughly follows the course of Johnson Creek, and crosses it on bridges many times.
The property is divided by Johnson Creek and most of the land is on an incline.
Elevated temperatures cause problems for aquatic life over the whole length of Johnson Creek.
Most fish species in Johnson Creek tolerate warm water and disturbed conditions.
Johnson Creek and its watershed are home to life forms that, under Oregon law, have been listed as "sensitive" species.
By 1960, use of the rail line along Johnson Creek had declined and passenger service was discontinued.
Several tributaries of Johnson Creek are located in this open space.
The highway passes through Johnson Creek at the interchange with I-94.
Grand Prairie has a long history of flooding from Johnson Creek.