I noticed the park is right across the street from houses.
Anaconda also has a cool slide (other side of town), but no skateboards!!
From I-90 Take exit #201 to Warm Springs - go 0.4 mi
Turn right at MT-48 - go 6.8 mi
Turn right at MT-1 N - go 1.6 mi
Continue on E Commercial Ave - go 0.4 mi
Turn left at Monroe St - go 376 ft Across Park Ave.
Skatepark is on the left. Link to Map