Some free icon sets I've come across, saved for later reference.
Your Host:
Mt Herman 2001: Curtis
10 Random Photos:
Moab 2006: Panoramic View 1
Newfoundland 2005: Ft. Amherst Lighthouse 02
Joshua Tree 2001: Hidden Valley 01
White Rim 2001: Day 1: Camp (Panoramic)
NYC 2002: Central Park Bouldering 02
Joshua Tree 2001: Hidden Valley 06
Jamaica 2002: Golf Goats
Canyoneering 2002: 22: Curtis, Sara, and Jacobs Chair
Lincoln Falls 2002: Crampons
Der Zerkle 2001: Greg on Ribspuren 05