Locate Grandfather's 1930s Mining Claim

I'm seeking help to locate my grandfather's mining claim in Colorado from the 1930s. I have no documents, but I have a rough idea of the location based on a nearby town or city. Requirements: - Experience... (Budget: $15 - $25 USD, Jobs: Cartography & Maps, Data Analysis, Data Collection, Data Mining, Geographical Information System (GIS), Internet Research, Local Job, Market Research, Research)