From Seattle:

From I-5 you can take Hwy 167 through Puyallup or Hwy 7 through Tacoma.  Both of these routes will get you to Elbe.

Turn right in Elbe onto Hwy 7 toward Morton.

Hwy 7 ends at Hwy 12. Turn left onto Hwy 12 toward Randle/Packwood/White Pass.

At milepost 114, turn right onto Peters Rd.

Look for the parking signs.

From I-5 northbound or southbound:

Take Exit 68 onto Hwy 12 eastbound toward Mossyrock/Morton/White Pass/Yakima. 

Follow Hwy 12 eastbound to milepost 114.  Turn right onto Peters Rd. Look for the parking signs.

From Yakima:

Follow Hwy 12 westbound over White Pass to Randle. Turn left onto Peters Rd. at milepost 114.  Look for the parking signs.

156 Peters Rd.

Randle, WA 98377