Here are a few links to help guide you in the right direction...
Form 3830-3.pdf - Notice of Intent to Locate a Lode or Placer Mining Claim(s) and/or a Tunnel Site(s) On Lands Patented Under the Stock Raising
Form 3830-4.pdf - Affidavit of Annual Assessment Work
Form 3830-5.pdf - Maintenance Fee Payment Form for Lode Claims, Mill Sites, and Tunnel Sites (with credit card payment form)
Form 3830-5a.pdf - Maintenance Fee Payment Form for Placer Mining Claims (with credit card payment form)
For fillable eForms visit... Bureau of Land Management Mining Law Forms Page (Web Site)
STATE SPECIFIC MINING FORMS
PLEASE NOTE** MINING CLAIMS/SITES FILING INSTRUCTIONS FOR 2016
DUE ON OR BEFORE SEPTEMBER 1st of every year
*NOTE---On July 27, 2012, maintenance fees for placer mining claims were increased from $140 per claim to $155 per 20 acres or portion thereof. An example of the 2016 maintenance fee payment on an 80 acre placer claim is $620.