----------------------------Original message---------------------------- ------------------ This is in response to the revision issue statements made in Russell Guy's = 9/18 submission to the MAPS-L mailing list. Although it is true that the majority of base-series topo map revisions over= the past several years have been done in financial cooperation with State cooperators, USGS has no policy which mandates such arrangements. During = the next several years USGS will be inspecting and revising a larger number of = topo maps based on their sales history, significant environmental events, etc., rather than cooperative funding in an attempt to update an increased share = of those in greatest demand. There will continue to be maps updated at the = request of State cooperators and these, by law, must have at least =BD their costs = borne by the cooperator. Topography will be updated, in most instances, to fit new or modified = features like roads and ponds. More substantial topographic changes (e.g. new = quarries, dams, etc.) will be considered on a map-by-map basis. Cooperators will also generally have the option to have a full topographic update performed on a cost-shared basis. The cooperatively funded aspect of the National Mapping Program benefits the Nation in two ways. First, it increase the overall resources available for mapping activities, and therefore permits the USGS to produce more maps and digital data than would otherwise be possible. Secondly, by working = directly with the State and Federal agencies with whom the USGS cooperates, the = National Mapping Program can be more responsive to their requirements. Cooperative agreements help by augmenting the Federal dollars and, as you point out, = they also influence where work is performed. This can be very beneficial to the program because the State and Federal agencies who have operational responsibilities in their localities are often the best source of = information as to which maps need revision the most. Michael Cooley