User manual Garmin Colorado 400T (English - 48 pages)
Garmin+Lakes+-+Maps+for+Colorado+300%2C+400+eTrex+20%2C+30+GPSMAP+42X%2C+43X%2C+44X%2C+52X%2C+53X%2C+54X%2C+600%2C+60XX+RINO+65X for sale online | eBay
How to Find a Waypoint on a Garmin Colorado 300 GPS : 4 Steps - Instructables
Easy: O-maps on your Garmin GPS using QuickRoute | World of O News