5a. To support the application, furnish two copies of the location notice (or last amended location with the original location and recordation date shown thereon). One copy must be certified by the custodian of the records where mining claims are locally recorded (usually the County Clerk and Recorder). 5b. The claim must be monumented on the ground so that the mineral surveyor can identify it. 6. In accordance with the instructions, a deposit in the proper amount must be made to cover the costs of the Bureau of Land Management in processing the survey. 7. The mineral surveyor designated must be one with whom prior arrangements have been made for the survey. The Bureau of Land Management may request proof, in the form of a simple letter from the mineral surveyor, that he has agreed to make the survey. The application should then be dated and signed by the applicant(s), if a corporation by the authorized officer, or by the Attorney-in-fact if by an agent acting for the applicant. Proof of authorized signature will not be required by the Bureau of Land Management at this time, but will be required at the time application for patent is made. Several claims, generally limited to 50 in number, may be embraced in a single survey provided they are contiguous, i.e., not merely cornering; they must adjoin with common boundaries or overlap. Limiting the number of claims to be embraced in a single survey is arbitrary, but set at approximately 50 in order to facilitate processing. Two groups of claims may be embraced in a single survey if they both adjoin a group previously surveyed for patent and are owned in common. Occasions have arisen where the group of claims lies in two states. Applications for survey should be made in each state for the claims or portions thereof which lie in that state. A survey number will be assigned in each state for the portion lying within each state, but the survey will be assigned for processing to the State where the majority of the claims lie. (See Surs. Nos. 10631 Montana, 3168 Idaho.) =4–5= Records Search: Prior to applying for the mineral survey, the claimant or his agent should make a search of the county records to determine if the claims are in conflict with other mining claim locations. If so, copies of the location certificates should be obtained for the mineral surveyor. If the claims are prior valid locations and the claimant wishes to exclude them from his patent application, the mineral surveyor will be required to show the conflict as it exists on the ground. If it is not the desire to exclude such claims, no mention of them will be made in the field notes of the mineral survey, but the mineral surveyor will be aware of them when he goes on the ground.