What are you wanting to find out? I have a copy of the 2018 expenditures they are as follows,
Maintenance $199,515
Visitor services $287,251
Management expenses $35,885
There are other things that are not included in this report ( Law Enforcement is not included) and each category is broken down even more.
All the information you asked for is public information, and could be obtained by contacting the Barstow BLM field office.
Dumont gets more dollars than the sale of passes generates due to grants and Federal funds.