A good place to post questions is in our forums and we recommend you go there first. We have forum discussions for our events as well as a general Q&A discussions for the club. However, if you need to contact us directly be email please use the following:

President – email our club president about the club and/or our events.
president at stumpjumpers dot org

Desert 100 – Desert 100 comments & questions only.
desert100 at stumpjumpers dot org

Website Issues – let us know if you found a problem or have a suggestion.
admin at stumpjumpers dot org

Mail
Stumpjumpers
P.O Box 476
Lynnwood, Wa. 98046-0476