Field geologist tools _"most basic tools of a field geologist:"_ * rock hammer * hand lens * topographic map * field notebook * "Brunton compass":http://www.ascscientific.com/brunton.html http://geology.com/store http://www.ascscientific.com/geology.html http://www.ukge.com/en-us/Field/Field-Lenses-and-Loupes__c-p-0-0-8-43.aspx http://www.ascscientific.com/lens.html http://www.ascscientific.com/picks.html http://www.ascscientific.com/fldbks.html http://www.amazon.com/Roadside-Geology-Minnesota-Series/dp/0878425624/ref=sr_1_1?ie=UTF8&qid=1387135470&sr=8-1&keywords=Roadside+Geology+of+Minnesota http://www.amazon.com/Rite-In-The-Rain-Notebook/dp/B001PD28JM/ref=pd_sim_hi_2