Bibliografía (9 obras)
100 best cross-country ski trails in Washington
2002
Cross-country ski tours
1996
Cross-country ski tours--Washington's south Cascades & Olympics
1995
Mountain bike adventures in Washington's North Cascades and Olympics
1989
Mountain bike adventures in Washington's South Cascades and Puget Sound
Cross-country ski tours of Washington's North Cascades
1988
Cross-country ski tours of Washington's south Cascades and Olympics
Bicycling the Pacific Coast
1984
Cross-country ski trails of Washington's Cascades and Olympics
1983
