The links below take you to dynamically generated lists of Mark Spencer's peakbagging activity.
Reports showing a climber's buddies and other climbers. Click for More Info
Lists personally created by Mark Spencer. (Search for Lists from other climbers).
These reports show number of peaks climbed, highest point reached, and other statistics grouped by year or month.
Mark Spencer has self-identified as interested in climbing to the high points of counties in the United States.